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Das Adhikary, Gobinda ; Mahale, Bhoopesh ; Rao, Badari Narayana ; Senyshyn, Anatoliy ; Ranjan, Rajeev (2021) Depoling phenomena in Na_0.5Bi_0.5TiO₃−BaTiO₃ : A structural perspective Physical Review B: Condensed Matter and Materials Physics, 103 (18). p. 184106. ISSN 2469-9950

Das Adhikary, Gobinda ; Dwij, Vivek ; Senyshyn, Anatoliy ; Sathe, Vasant ; Ranjan, Rajeev (2021) Large nonlinear electrostrain and piezoelectric response in nonergodic (Na,K)0.5Bi0.5TiO3 : Synergy of structural disorder and tetragonal phase in proximity to a morphotropic phase boundary Physical Review Materials, 5 (6). 064414. ISSN 2475-9953

Saha, Sujoy ; Singh, Ram Prakash ; Liu, Ying ; Swain, Atal Bihari ; Kumar, Amritesh ; Subramanian, V. ; Arockiarajan, A. ; Srinivasan, G. ; Ranjan, Rajeev (2021) Strain transfer in ferroelectric-ferrimagnetic magnetoelectric composite Physical Review B: Condensed Matter and Materials Physics, 103 (14). ISSN 2469-9950

Adhikary, Gobinda Das ; Ranjan, Rajeev (2020) Abrupt change in domain switching behavior within tetragonal phase regime of (x)Na_1/2Bi_1/2TiO₃-(1 − x)K_1/2Bi_1/2TiO₃ Journal of Applied Physics, 128 (20). p. 204102. ISSN 0021-8979

Datta, K. ; Brajesh, Kumar ; Ranjan, Rajeev ; Mihailova, B. (2020) Adaptive dipolar correlation in ferroelectric x(Ba0.7Ca0.3)TiO3−(1−x)Ba(Zr0.2Ti0.8)O3 Physical Review B: Condensed Matter and Materials Physics, 102 (6). ISSN 2469-9950

Kumar, Naveen ; Mishra, Anupam ; De, Arnab ; Shankar, Uma ; Ranjan, Rajeev (2020) Factors contributing to the local polar-structural heterogeneity and ultrahigh piezoelectricity in Sm-modified Pb(Mg1/3Nb2/3)O3–PbTiO3 Journal of Physics D: Applied Physics, 53 (16). p. 165302. ISSN 0022-3727

De, Arnab ; Ranjan, Rajeev (2020) Large structural heterogeneity in submicrometer BaTiO3 revealed via Eu⁺³ photoluminescence study Journal of Applied Physics, 128 (12). p. 124104. ISSN 0021-8979

De, Arnab ; Ranjan, Rajeev (2020) Large temperature tuning of the emission color of a phosphor by dual use of Raman and photoluminescence signals Materials Horizons, 7 (4). pp. 1101-1105. ISSN 2051-6347

Saha, Sujoy ; Singh, Ram Prakash ; Kumar, Avinash ; De, Arnab ; Pandey, Prafull ; Narayan, Bastola ; Basumatary, Himalay ; Senyshyn, Anatoliy ; Ranjan, Rajeev (2020) Magnetic enhancement of ferroelectric polarization in a particulate multiferroic composite derived in situ via additive assisted sintering of a pseudo ternary alloy system BiFeO₃–PbTiO₃–DyFeO₃ Applied Physics Letters, 116 (14). p. 142902. ISSN 0003-6951

Ranjan, Rajeev (2020) Na_1/2Bi_1/2TiO₃-Based Lead-Free Piezoceramics: A Review of Structure–property Correlation Current Science, 118 (10). pp. 1507-1519. ISSN 0011-3891

Das Adhikary, Gobinda ; Mahale, Bhoopesh ; Senyshyn, Anatoliy ; Ranjan, Rajeev (2020) Relaxor ground state forced by ferroelastic instability in K_0.5Bi_0.5TiO₃−Na_0.5Bi_0.5TiO₃ Physical Review B: Condensed Matter and Materials Physics, 102 (18). ISSN 2469-9950

Kumar, Amit ; Kumar, Avinash ; Saha, Sujoy ; Basumatary, Himalay ; Ranjan, Rajeev (2019) Ferromagnetism in the multiferroic alloy systems BiFeO₃-BaTiO₃ and BiFeO₃-SrTiO₃: Intrinsic or extrinsic? Applied Physics Letters, 114 (2). 022902. ISSN 0003-6951

Mishra, Anupam ; Khatua, Dipak Kumar ; Adhikary, Gobinda Das ; Kumar, Naveen ; Shankar, Uma ; Ranjan, Rajeev (2019) Finite-size-effect on a very large length scale in NBT-based lead-free piezoelectrics Journal of Advanced Dielectrics, 09 (05). p. 1950035. ISSN 2010-135X

Mahale, Bhoopesh ; Kumar, Naveen ; Pandey, Rishikesh ; Ranjan, Rajeev (2019) High Power Density Low-Lead-Piezoceramic–Polymer Composite Energy Harvester IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 66 (4). pp. 789-796. ISSN 0885-3010

Das Adhikary, Gobinda ; Khatua, Dipak Kumar ; Mishra, Anupam ; De, Arnab ; Kumar, Naveen ; Saha, Sujoy ; Shankar, Uma ; Senyshyn, Anatoliy ; Rao, Badari Narayana ; Ranjan, Rajeev (2019) Increasing intervention of nonferroelectric distortion and weakening of ferroelectricity at the morphotropic phase boundary in Na_0.5Bi_0.5TiO₃−BaTiO₃ Physical Review B: Condensed Matter and Materials Physics, 100 (13). ISSN 2469-9950

Shankar, Uma ; Kumar, Naveen ; Narayan, Bastola ; Swain, Diptikanta ; Senyshyn, Anatoliy ; Ranjan, Rajeev (2019) Large electromechanical response in ferroelectrics: Beyond the morphotropic phase boundary paradigm Physical Review B: Condensed Matter and Materials Physics, 100 (9). ISSN 2469-9950

Sil, Anomitra ; Negi, Devendra S. ; Naik, Mit H. ; Jain, Manish ; Datta, Ranjan ; Ranjan, Rajeev ; Anil Kumar, P. S. (2019) Large intrinsic magnetization in an epitaxial BiFeO₃/NdGaO₃ system EPL (Europhysics Letters), 126 (5). p. 57003. ISSN 1286-4854

Adhikary, Gobinda Das ; Khatua, Dipak Kumar ; Senyshyn, Anatoliy ; Ranjan, Rajeev (2019) Long-period structural modulation on the global length scale as the characteristic feature of the morphotropic phase boundaries in the Na_0.5Bi_0.5TiO₃ based lead-free piezoelectrics Acta Materialia, 164 . pp. 749-760. ISSN 1359-6454

Mishra, Anupam ; Khatua, Dipak Kumar ; De, Arnab ; Ranjan, Rajeev (2019) Off-stoichiometry, structural-polar disorder and piezoelectricity enhancement in pre-MPB lead-free Na_0.5Bi_0.5TiO₃-BaTiO₃ piezoceramic Journal of Applied Physics, 125 (21). p. 214101. ISSN 0021-8979

Das Adhikary, Gobinda ; Khatua, Dipak Kumar ; Senyshyn, Anatoliy ; Ranjan, Rajeev (2019) Random lattice strain and its relaxation towards the morphotropic phase boundary of Na_0.5Bi_0.5TiO₃ -based piezoelectrics: Impact on the structural and ferroelectric properties Physical Review B: Condensed Matter and Materials Physics, 99 (17). ISSN 2469-9950

Mishra, Anupam ; Khatua, Dipak Kumar ; De, Arnab ; Majumdar, Bhaskar ; Frömling, Till ; Ranjan, Rajeev (2019) Structural mechanism behind piezoelectric enhancement in off-stoichiometric Na_0.5Bi_0.5TiO₃ based lead-free piezoceramics Acta Materialia, 164 . pp. 761-775. ISSN 1359-6454

Khatua, Dipak Kumar ; Mishra, Anupam ; Kumar, Naveen ; Adhikary, Gobinda Das ; Shankar, Uma ; Majumdar, Bhaskar ; Ranjan, Rajeev (2019) A coupled microstructural-structural mechanism governing thermal depolarization delay in Na_0.5Bi_0.5TiO₃-based piezoelectrics Acta Materialia, 179 . pp. 49-60. ISSN 1359-6454

Chouhan, Arun Singh ; Athresh, Eashwer ; Ranjan, Rajeev ; Raghavan, Srinivasan ; Avasthi, Sushobhan (2018) BaBiO₃: A potential absorber for all-oxide photovoltaics Materials Letters, 210 . pp. 218-222. ISSN 0167-577X

Narayan, Bastola ; Malhotra, Jaskaran Singh ; Pandey, Rishikesh ; Yaddanapudi, Krishna ; Nukala, Pavan ; Dkhil, Brahim ; Senyshyn, Anatoliy ; Ranjan, Rajeev (2018) Electrostrain in excess of 1% in polycrystalline piezoelectrics Nature Materials, 17 (5). pp. 427-431. ISSN 1476-1122

Khatua, Dipak Kumar ; Agarwal, Abhishek ; Mishra, Anupam ; Das Adhikary, Gobinda ; Senyshyn, Anatoliy ; Ranjan, Rajeev (2018) Enhanced thermal stability of dielectric, energy storage, and discharge efficiency in a structurally frustrated piezoelectric system: Erbium modified _{Na0.5Bi0.5TiO}3-BaTiO₃ Journal of Applied Physics, 124 (10). p. 104101. ISSN 0021-8979

Kumar, Naveen ; Khatua, Dipak Kumar ; Mahale, Bhoopesh ; Ranjan, Rajeev (2018) Factors influencing the coupling between non-180° domain switching and lattice strain in perovskite piezoceramics Physical Review B: Condensed Matter and Materials Physics, 97 (13). ISSN 2469-9950

Pandey, Rishikesh ; Narayan, Bastola ; Khatua, Dipak Kumar ; Tyagi, Shekhar ; Mostaed, Ali ; Abebe, Mulualem ; Sathe, Vasant ; Reaney, Ian M. ; Ranjan, Rajeev (2018) High electromechanical response in the non morphotropic phase boundary piezoelectric system PbTiO₃−Bi(Zr_1/2Ni_1/2)O₃ Physical Review B: Condensed Matter and Materials Physics, 97 (22). ISSN 2469-9950

Khatua, Dipak Kumar ; Agarwal, Abhishek ; Ranjan, Rajeev (2018) Investigating the electrical conduction and relaxation phenomena in rare earth erbium doped lead free 0.94Na_0.5Bi_0.5TiO₃-0.06BaTiO₃ by impedance spectroscopy Journal of Applied Physics, 123 (7). 074102. ISSN 0021-8979

Kumar, Amit ; Narayan, Bastola ; Pachat, Rohit ; Ranjan, Rajeev (2018) Magnetic enhancement of ferroelectric polarization in a self-grown ferroelectric-ferromagnetic composite Physical Review B: Condensed Matter and Materials Physics, 97 (6). 064103. ISSN 2469-9950

Khatua, Dipak Kumar ; Agarwal, Abhishek ; Kumar, Naveen ; Ranjan, Rajeev (2018) Probing local structure of the morphotropic phase boundary composition of Na_0.5Bi_0.5TiO₃–BaTiO₃ using rare-earth photoluminescence as a technique Acta Materialia, 145 . pp. 429-436. ISSN 1359-6454

Akbarzadeh, Alireza ; Brajesh, Kumar ; Nahas, Yousra ; Kumar, Naveen ; Prokhorenko, Sergei ; Swain, Diptikanta ; Prosandeev, Sergey ; Walter, Raymond ; Kornev, Igor ; Íñiguez, Jorge ; Dkhil, Brahim ; Ranjan, Rajeev ; Bellaiche, L. (2018) Quantum-fluctuation-stabilized orthorhombic ferroelectric ground state in lead-free piezoelectric (Ba,Ca)(Zr,Ti)O₃ Physical Review B: Condensed Matter and Materials Physics, 98 (10). ISSN 2469-9950

Abebe, Mulualem ; Brajesh, Kumar ; Malhotra, Jaskaran Singh ; Ranjan, Rajeev (2018) Rayleigh analysis of domain dynamics across temperature induced polymorphic phase transitions in lead-free piezoceramics (1−x)(BaTi_0.88Sn_0.12)–x(Ba_0.7Ca_0.3)TiO₃ Journal of Physics D: Applied Physics, 51 (18). p. 185601. ISSN 0022-3727

Paterson, Alisa R. ; Nagata, Hajime ; Tan, Xiaoli ; Daniels, John E. ; Hinterstein, Manuel ; Ranjan, Rajeev ; Groszewicz, Pedro B. ; Jo, Wook ; Jones, Jacob L. (2018) Relaxor-ferroelectric transitions: Sodium bismuth titanate derivatives MRS Bulletin, 43 (8). pp. 600-606. ISSN 0883-7694

De, Arnab ; Ranjan, Rajeev (2018) Synergistic role of poling in enhancing structural heterogeneity in perovskite piezoelectrics Physical Review B: Condensed Matter and Materials Physics, 98 (9). ISSN 2469-9950

Sil, Anomitra ; Naik, Mit H. ; Ranjan, Rajeev ; Anil Kumar, P. S. (2018) Tuning the crystallographic orientation and magnetic properties of multiferroic CuO epitaxial film on single crystalline SrTiO₃ substrates Journal of Applied Physics, 124 (8). 085303. ISSN 0021-8979

Khatua, Dipak Kumar ; Mehrotra, Tarang ; Mishra, Anupam ; Majumdar, Bhaskar ; Senyshyn, Anatoliy ; Ranjan, Rajeev (2017) Anomalous influence of grain size on the global structure, ferroelectric and piezoelectric response of Na_0.5Bi_0.5TiO₃ Acta Materialia, 134 . pp. 177-187. ISSN 1359-6454

Abebe, Mulualem ; Brajesh, Kumar ; Ranjan, Rajeev (2017) Correlation between structure and Rayleigh parameters in the lead-free piezoceramic (1-x)Ba(Ti_0.88Sn_0.12)O₃-x(Ba_0.7Ca_0.3)TiO₃ Journal of Applied Physics, 122 (3). 034101. ISSN 0021-8979

Mahale, Bhoopesh ; Pandey, Rishikesh ; Kumar, Naveen ; Ranjan, Rajeev (2017) Grain-size dependent electric-field induced structural changes and its role in determining the piezoelectric response of 0–3 piezoceramic-polymer composite Journal of Applied Physics, 122 (15). p. 154105. ISSN 0021-8979

Dias, E. T. ; Priolkar, K. R. ; Ranjan, Rajeev ; Nigam, A. K. ; Emura, S. (2017) Mechanism of magnetostructural transformation in multifunctional Mn₃GaC Journal of Applied Physics, 122 (10). p. 103906. ISSN 0021-8979

Sil, Anomitra ; Wagh, Aditya A. ; Sharma, Deepak ; Ranjan, Rajeev ; Anil Kumar, P. S. (2017) On the inter-layer magneto-electric coupling in BiFeO₃/SrRuO₃ heterostructure Applied Physics Letters, 111 (10). p. 102902. ISSN 0003-6951

Topolov, Vitaly Yu ; Brajesh, Kumar ; Ranjan, Rajeev ; Panich, Anatoly E (2017) Plausible domain configurations and phase contents in two- and three-phase BaTiO₃-based lead-free ferroelectrics Journal of Physics D: Applied Physics, 50 (6). 065307. ISSN 0022-3727

Kaur, Ramanpreet ; Swain, Diptikanta ; Dutta, Dipak ; Brajesh, Kumar ; Singh, Priyank ; Bhattacharyya, Aninda J. ; Ranjan, Rajeev ; Narayana, Chandrabhas ; Hulliger, Jürg ; Guru Row, Tayur N. (2017) Proton Conduction in a Quaternary Organic Salt: Its Phase Behavior and Related Spectroscopic Studies Journal of Physical Chemistry C, 121 (34). pp. 18317-18325. ISSN 1932-7447

Abebe, Mulualem ; Brajesh, Kumar ; Mishra, Anupam ; Senyshyn, Anatoliy ; Ranjan, Rajeev (2017) Structural perspective on the anomalous weak-field piezoelectric response at the polymorphic phase boundaries of (Ba,Ca)(Ti,M)O₃ lead-free piezoelectrics ( M=Zr , Sn, Hf) Physical Review B: Condensed Matter and Materials Physics, 96 (1). 014113. ISSN 2469-9950

Narayan, Bastola ; Adhikari, Sangeeta ; Madras, Giridhar ; Ranjan, Rajeev (2017) Trapping a Metastable Ferroelectric Phase by Size Reduction in Semiconducting Ferroelectric BiFeO₃−PbTiO₃ and Its Implications for Photocatalytic Response Physical Review Applied, 7 (2). ISSN 2331-7019

Sil, Anomitra ; Anil Kumar, P.S. ; Ranjan, Rajeev (2017) Tuning the magnetic characteristics of epitaxial BiFeO₃ films using structural control Thin Solid Films, 642 . pp. 117-123. ISSN 0040-6090

Mishra, Anupam ; Majumdar, Bhaskar ; Ranjan, Rajeev (2017) A complex lead-free (Na, Bi, Ba)(Ti, Fe)O₃ single phase perovskite ceramic with a high energy-density and high discharge-efficiency for solid state capacitor applications Journal of the European Ceramic Society, 37 (6). pp. 2379-2384. ISSN 0955-2219

Khatua, Dipak Kumar ; K. V., Lalitha ; Fancher, Chris M. ; Jones, Jacob L. ; Ranjan, Rajeev (2016) Anomalous reduction in domain wall displacement at the morphotropic phase boundary of the piezoelectric alloy system PbTiO₃−BiScO₃ Physical Review B: Condensed Matter and Materials Physics, 93 (10). ISSN 2469-9950

Topolov, Vitaly Yu. ; Brajesh, Kumar ; Ranjan, Rajeev (2016) Composition driven ferroelectric transformations in lead-free Ba(Ti_1−xCe_x)O₃ (0.02 ≤ x ≤ 0.10) Materials Chemistry and Physics, 179 . pp. 152-159. ISSN 0254-0584

Rao, Badari Narayana ; Olivi, Luca ; Sathe, Vasant ; Ranjan, Rajeev (2016) Electric field and temperature dependence of the local structural disorder in the lead-free ferroelectric Na_0.5Bi_0.5TiO₃: An EXAFS study Physical Review B: Condensed Matter and Materials Physics, 93 (2). ISSN 2469-9950

Narayanachari, K. V. L. V. ; Chandrasekar, Hareesh ; Banerjee, Amiya ; Varma, K. B. R. ; Ranjan, Rajeev ; Bhat, Navakanta ; Raghavan, Srinivasan (2016) Growth stress induced tunability of dielectric permittivity in thin films Journal of Applied Physics, 119 (1). 014106. ISSN 0021-8979

Narayan, Bastola ; Sorb, Y. A. ; Loukya, B. ; Samanta, Atanu ; Senyshyn, Anatoliy ; Datta, Ranjan ; Singh, Abhishek Kumar ; Narayana, Chandrabhas ; Ranjan, Rajeev (2016) Interferroelectric transition as another manifestation of intrinsic size effect in ferroelectrics Physical Review B: Condensed Matter and Materials Physics, 94 (10). ISSN 2469-9950

Khatua, Dipak Kumar ; Senyshyn, Anatoliy ; Ranjan, Rajeev (2016) Long-period modulated structure and electric-field-induced structural transformation in Na_0.5Bi_0.5TiO₃ -based lead-free piezoelectrics Physical Review B: Condensed Matter and Materials Physics, 93 (13). ISSN 2469-9950

Rao, Badari Narayana ; Senyshyn, Anatoliy ; Olivi, Luca ; Sathe, Vasant ; Ranjan, Rajeev (2016) Maintaining local displacive disorders in Na_0.5Bi_0.5TiO₃ piezoceramics by K_0.5Bi_0.5TiO₃ substitution Journal of the European Ceramic Society, 36 (8). pp. 1961-1972. ISSN 0955-2219

Basu, Abhisek ; Jana, Rajesh ; Ranjan, Rajeev ; Mukherjee, Goutam Dev (2016) Pressure effects on model ferroelectric BiFeO₃−PbTiO₃: Multiple phase transitions Physical Review B: Condensed Matter and Materials Physics, 93 (21). ISSN 2469-9950

Gaur, Anupama ; Shukla, Rahul ; Kumar, Brajesh ; Pal, Arkadeb ; Chatterji, Sandeep ; Ranjan, Rajeev ; Maiti, Pralay (2016) Processing and nanoclay induced piezoelectricity in poly(vinylidene fluoride-co-hexafluoro propylene) nanohybrid for device application Polymer, 97 . pp. 362-369. ISSN 0032-3861

Brajesh, Kumar ; Abebe, Mulualem ; Ranjan, Rajeev (2016) Structural transformations in morphotropic-phase-boundary composition of the lead-free piezoelectric system Ba(Ti_0.8Zr_0.2)O₃−(Ba_0.7Ca_0.3)TiO₃ Physical Review B: Condensed Matter and Materials Physics, 94 (10). ISSN 2469-9950

Khatua, Dipak Kumar ; Kalaskar, Abhijeet ; Ranjan, Rajeev (2016) Tuning Photoluminescence Response by Electric Field in Electrically Soft Ferroelectrics Physical Review Letters, 116 (11). ISSN 0031-9007

Basumatary, Himalay ; Arout Chelvane, J. ; Sridhara Rao, D.V. ; Kamat, S.V. ; Ranjan, Rajeev (2015) Effect of sputtering parameters on the structure, microstructure and magnetic properties of Tb-Fe films Thin Solid Films, 583 . pp. 1-6. ISSN 0040-6090

Kalaskar, Abhijeet ; Rao, Badari Narayana ; Thomas, Tiju ; Ranjan, Rajeev (2015) Electric field induced short range to long range structural ordering and its influence on the Eu⁺³ photoluminescence in the lead-free ferroelectric Na_1/2Bi_1/2TiO₃ Journal of Applied Physics, 117 (24). p. 244106. ISSN 0021-8979

Brajesh, Kumar ; Kalyani, Ajay Kumar ; Ranjan, Rajeev (2015) Ferroelectric instabilities and enhanced piezoelectric response in Ce modified BaTiO₃ lead-free ceramics Applied Physics Letters, 106 (1). 012907. ISSN 0003-6951

K. V., Lalitha ; Fancher, Chris M. ; Jones, Jacob L. ; Ranjan, Rajeev (2015) Field induced domain switching as the origin of anomalous lattice strain along non-polar direction in rhombohedral BiScO₃-PbTiO₃ close to the morphotropic phase boundary Applied Physics Letters, 107 (5). 052901. ISSN 0003-6951

Basumatary, Himalay ; Arout Chelvane, J. ; Sridhara Rao, D.V. ; Kamat, S.V. ; Ranjan, R. (2015) Influence of substrate temperature on structure, microstructure and magnetic properties of sputtered Fe–Ga thin films Journal of Magnetism and Magnetic Materials, 384 . pp. 58-63. ISSN 0304-8853

Topolov, Vitaly Yu. ; Rao, Badari Narayana ; Garg, Rohini ; Ranjan, Rajeev (2015) Interrelationship between Interphase Boundaries and Phase Contents near the Critical Compositions of Lead-Free Ferroelectric (Na_0.5Bi_0.5)TiO₃−BaTiO₃ Ferroelectrics, 482 (1). pp. 22-33. ISSN 0015-0193

Kalyani, Ajay Kumar ; Khatua, Dipak Kumar ; Loukya, B. ; Datta, Ranjan ; Fitch, Andy N. ; Senyshyn, Anatoliy ; Ranjan, Rajeev (2015) Metastable monoclinic and orthorhombic phases and electric field induced irreversible phase transformation at room temperature in the lead-free classical ferroelectric BaTiO₃ Physical Review B: Condensed Matter and Materials Physics, 91 (10). ISSN 1098-0121

Badapanda, T. ; Sarangi, S. ; Behera, B. ; Parida, S. ; Saha, S. ; Sinha, T.P. ; Ranjan, Rajeev ; Sahoo, P.K. (2015) Optical and dielectric study of strontium modified barium zirconium titanate ceramic prepared by high energy ball milling Journal of Alloys and Compounds, 645 . pp. 586-596. ISSN 0925-8388

Rao, Badari Narayana ; Avdeev, Maxim ; Kennedy, Brendan ; Ranjan, Rajeev (2015) Phase boundary atx=0.03and its anomalous influence on the structure and properties in the lead-free piezoelectric (1−x)Na_1/2Bi_1/2TiO₃−(x)BaTiO₃ Physical Review B: Condensed Matter and Materials Physics, 92 (21). ISSN 1098-0121

Kalyani, Ajay Kumar ; Krishnan, Hari ; Sen, Arijit ; Senyshyn, Anatoliy ; Ranjan, Rajeev (2015) Polarization switching and high piezoelectric response in Sn-modified BaTiO₃ Physical Review B: Condensed Matter and Materials Physics, 91 (2). ISSN 1098-0121

Brajesh, Kumar ; Tanwar, Khagesh ; Abebe, Mulualem ; Ranjan, Rajeev (2015) Relaxor ferroelectricity and electric-field-driven structural transformation in the giant lead-free piezoelectric(Ba,Ca)(Ti,Zr)O₃ Physical Review B: Condensed Matter and Materials Physics, 92 (22). ISSN 1098-0121

Rao, Badari Narayana ; Khatua, Dipak Kumar ; Garg, Rohini ; Senyshyn, Anatoliy ; Ranjan, Rajeev (2015) Structural crossover from nonmodulated to long-period modulated tetragonal phase and anomalous change in ferroelectric properties in the lead-free piezoelectric Na_1/2Bi_1/2TiO₃−BaTiO₃ Physical Review B: Condensed Matter and Materials Physics, 91 (21). ISSN 1098-0121

Kalyani, Ajay Kumar ; V, Lalitha K ; James, Ajit R ; Fitch, Andy ; Ranjan, Rajeev (2015) Unraveling the nature of electric field- and stress- induced structural transformations in soft PZT by a new powder poling technique Journal of Physics: Condensed Matter, 27 (7). 072201. ISSN 0953-8984

K. V., Lalitha ; Kalyani, Ajay Kumar ; Ranjan, Rajeev (2014) Analogous stress and electric field driven structural transformation and decrease in polarization coherence on poling around the morphotropic phase boundary in BiScO3−PbTiO3 Physical Review B: Condensed Matter and Materials Physics, 90 (22). ISSN 1098-0121

Saha, Sujoy ; Chanda, Sadhan ; Dutta, Alo ; Kumar, Uday ; Ranjan, Rajeev ; Sinha, T.P. (2014) Dielectric relaxation and anti-ferromagnetic coupling of BiEuO₃ and BiGdO₃ Journal of Magnetism and Magnetic Materials, 360 . pp. 80-86. ISSN 0304-8853

Brajesh, Kumar ; Kumar, Pritam ; Himanshu, A.K. ; Ranjan, Rajeev ; Bandyopadhayay, S.K. ; Sinha, T.P ; Singh, N.K. (2014) Dielectric relaxation, phase transition and Rietveld studies of perovskite [Pb_0.94Sr_0.06][(Mn_1/3Sb_2/3)_0.05(Zr_0.52Ti_0.48)0.95]O3 ceramics Journal of Alloys and Compounds, 589 . pp. 443-447. ISSN 0925-8388

Kothai, V. ; Narayan, Bastola ; Brajesh, Kumar ; Kaushik, S. D. ; Siruguri, V. ; Ranjan, Rajeev (2014) Ferroelectric phase coexistence by crystallite size reduction in BiFeO₃−PbTiO₃ Physical Review B: Condensed Matter and Materials Physics, 90 (15). ISSN 1098-0121

Vura, Sandeep ; Anil Kumar, P.S. ; Senyshyn, Anatoliy ; Ranjan, Rajeev (2014) Magneto-structural study of the multiferroic BiFeO₃–SrTiO₃ Journal of Magnetism and Magnetic Materials, 365 . pp. 76-82. ISSN 0304-8853

Kalyani, Ajay Kumar ; Brajesh, Kumar ; Senyshyn, Anatoliy ; Ranjan, Rajeev (2014) Orthorhombic-tetragonal phase coexistence and enhanced piezo-response at room temperature in Zr, Sn, and Hf modified BaTiO₃ Applied Physics Letters, 104 (25). p. 252906. ISSN 0003-6951

Sharma, Subhash ; Singh, Vikash ; Dwivedi, R. K. ; Ranjan, Rajeev ; Anshul, Avneesh ; Amritphale, S. S. ; Chandra, Navin (2014) Phase transformation, improved ferroelectric and magnetic properties of (1 − x) BiFeO₃–xPb(Zr_0.52Ti_0.48)O₃ solid solutions Journal of Applied Physics, 115 (22). p. 224106. ISSN 0021-8979

Sharma, Maya ; Ranganatha, S ; Kumar Kalyani, Ajay ; Ranjan, Rajeev ; Madras, Giridhar ; Bose, Suryasarathi (2014) Zirconia doped barium titanate induced electroactive β polymorph in PVDF-HFP: high energy density and dielectric properties Materials Research Express, 1 (4). 045301. ISSN 2053-1591

Kumar Kalyani, Ajay ; Ranjan, Rajeev (2013) Anomalous piezoelectric response due to stabilization of two ferroelectric phases in Zr-modified BaTiO₃ Journal of Physics: Condensed Matter, 25 (36). p. 362203. ISSN 0953-8984

Vadlamani, Bhaskar Sravan ; V., Lalitha K. ; Ranjan, Rajeev (2013) Anomalous polarization in the antiferroelectric-ferroelectric phase coexistence state in PbZrO₃-Bi(Mg_1/2Ti_1/2)O₃ Journal of Applied Physics, 114 (23). p. 234105. ISSN 0021-8979

Kothai, V. ; Senyshyn, Anatoliy ; Ranjan, Rajeev (2013) Competing structural phase transition scenarios in the giant tetragonality ferroelectric BiFeO₃-PbTiO₃: Isostructural vs multiphase transition Journal of Applied Physics, 113 (8). 084102. ISSN 0021-8979

K. V., Lalitha ; Fitch, Andy N. ; Ranjan, Rajeev (2013) Correlation between enhanced lattice polarizability and high piezoelectric response in BiScO₃-PbTiO₃ Physical Review B: Condensed Matter and Materials Physics, 87 (6). ISSN 1098-0121

Siddaramanna, Ashoka ; Srivastava, Chandan ; Narayana Rao, Badari ; Ranjan, Rajeev (2013) Effect of crystallite size and clustering in influencing the stability of phases of a very large tetragonality ferroelectric system 0.6BiFeO₃–0.4PbTiO₃ Solid State Communications, 160 . pp. 56-60. ISSN 0038-1098

Pramanik, A.K. ; Ranjan, Rajeev ; Banerjee, A. (2013) Evolution of structural phase coexistence in a half doped manganite Pr_0.5Sr_0.5MnO₃: An evidence for magneto-structural coupling Journal of Magnetism and Magnetic Materials, 325 . pp. 29-35. ISSN 0304-8853

Rao, Badari Narayana ; Fitch, Andy N. ; Ranjan, Rajeev (2013) Ferroelectric-ferroelectric phase coexistence in Na_1/2Bi_1/2TiO₃ Physical Review B: Condensed Matter and Materials Physics, 87 (6). ISSN 1098-0121

Garg, Rohini ; Rao, Badari Narayana ; Senyshyn, Anatoliy ; Krishna, P. S. R. ; Ranjan, Rajeev (2013) Lead-free piezoelectric system (Na_0.5Bi_0.5)TiO₃-BaTiO₃: Equilibrium structures and irreversible structural transformations driven by electric field and mechanical impact Physical Review B: Condensed Matter and Materials Physics, 88 (1). ISSN 1098-0121

Rao, Badari Narayana ; Datta, Ranjan ; Chandrashekaran, S. Selva ; Mishra, Dileep K. ; Sathe, Vasant ; Senyshyn, Anatoliy ; Ranjan, Rajeev (2013) Local structural disorder and its influence on the average global structure and polar properties in Na_0.5Bi_0.5TiO₃ Physical Review B: Condensed Matter and Materials Physics, 88 (22). ISSN 1098-0121

Garg, Rohini ; Narayana Rao, Badari ; Senyshyn, Anatoliy ; Ranjan, Rajeev (2013) Long ranged structural modulation in the pre-morphotropic phase boundary cubic-like state of the lead-free piezoelectric Na_1/2Bi_1/2TiO₃-BaTiO₃ Journal of Applied Physics, 114 (23). p. 234102. ISSN 0021-8979

Kothai, V. ; Prasath Babu, R. ; Ranjan, Rajeev (2013) Metastable morphotropic phase boundary state in the multiferroic BiFeO₃–PbTiO₃ Journal of Applied Physics, 114 (11). p. 114102. ISSN 0021-8979

Kalyani, Ajay Kumar ; Senyshyn, Anatoliy ; Ranjan, Rajeev (2013) Polymorphic phase boundaries and enhanced piezoelectric response in extended composition range in the lead free ferroelectric BaTi_1−xZrxO₃ Journal of Applied Physics, 114 (1). 014102. ISSN 0021-8979

Siddaramanna, Ashoka ; Kothai, V ; Srivastava, Chandan ; Ranjan, Rajeev (2013) Stabilization of metastable tetragonal phase in a rhombohedral magnetoelectric multiferroic BiFeO₃–PbTiO₃ Journal of Physics D: Applied Physics, 47 (4). 045004. ISSN 0022-3727

Chakraborty, J. ; Ghosh, M. ; Ranjan, Rajeev ; Das, G. ; Das, D. ; Chandra, S. (2013) X-ray diffraction and Mössbauer spectroscopy studies of cementite dissolution in cold-drawn pearlitic steel Philosophical Magazine, 93 (36). pp. 4598-4616. ISSN 1478-6435

Saha, Dipankar ; Ranjan, Rajeev ; Swain, Diptikanta ; Narayana, Chandrabhas ; Guru Row, Tayur N. (2013) An unusual temperature induced isostructural phase transition in a scheelite, Li_0.5Ce_0.5MoO₄ Dalton Transactions, 42 (21). p. 7672. ISSN 1477-9226

Garg, Rohini ; Senyshyn, Anatoliy ; Ranjan, Rajeev (2012) Complex structural phase transitions in slightly Ca modified Na_0.5Bi_0.5TiO₃ Journal of Physics: Condensed Matter, 24 (45). p. 455902. ISSN 0953-8984

Mallya, Ashwini N. ; Yashavanth Kumar, G.S. ; Ranjan, Rajeev ; Ramamurthy, Praveen C. (2012) Dielectric relaxations above room temperature in DMPU derived polyaniline film Physica B: Condensed Matter, 407 (18). pp. 3828-3832. ISSN 0921-4526

Rao, Badari Narayana ; Ranjan, Rajeev (2012) Electric-field-driven monoclinic-to-rhombohedral transformation in Na_1/2Bi_1/2TiO₃ Physical Review B: Condensed Matter and Materials Physics, 86 (13). ISSN 1098-0121

Preetha, P. ; Thomas, M. J. ; Ranjan, R. (2012) Electrothermal ageing of epoxy nanocomposites IEEE Transactions on Dielectrics and Electrical Insulation, 19 (6). pp. 2081-2089. ISSN 1070-9878

Bindu, R. ; Singh, Sanjay ; Singh, Navneet ; Ranjan, Rajeev ; Maiti, Kalobaran ; Hill, A. H. ; Barman, S. R. (2012) Evidence of nanoscale structural phase separation in large bandwidth La_0.2Sr_0.8MnO₃ Physical Review B: Condensed Matter and Materials Physics, 86 (14). ISSN 1098-0121

K. V., Lalitha ; Das, Shamiparna ; Kalyani, Ajay Kumar ; Garg, Rohini ; Ranjan, Rajeev ; Vanderah, T. A. (2012) Nucleation-Growth Mode of Cubic-Tetragonal Transition with Coexistence of Phases over a Wide Temperature Interval in the High Temperature Ferroelectric Systems PbTiO₃-BiMeO₃:Me = Sc, and Zn_1/2Ti_1/2 Journal of the American Ceramic Society, 95 (8). pp. 2635-2639. ISSN 0002-7820

Singh, Sanjay ; Rawat, R. ; Muthu, S. Esakki ; D’Souza, S. W. ; Suard, E. ; Senyshyn, A. ; Banik, S. ; Rajput, P. ; Bhardwaj, S. ; Awasthi, A. M. ; Ranjan, Rajeev ; Arumugam, S. ; Schlagel, D. L. ; Lograsso, T. A. ; Chakrabarti, Aparna ; Barman, S. R. (2012) Spin-Valve-Like Magnetoresistance in Mn₂NiGa at Room Temperature Physical Review Letters, 109 (24). ISSN 0031-9007

Brajesh, Kumar ; Himanshu, A.K. ; Sharma, Himanshu ; Kumari, Kiran ; Ranjan, Rajeev ; Bandhopadhyay, S.K. ; Sinha, T.P. (2012) Structural, dielectric relaxation and piezoelectric characterization of Sr²⁺ substituted modified PMS-PZT ceramic Physica B: Condensed Matter, 407 (4). pp. 635-641. ISSN 0921-4526

Kothai, V. ; Ranjan, Rajeev (2012) Synthesis of BiFeO₃ by carbonate precipitation Bulletin of Materials Science, 35 (2). pp. 157-161. ISSN 0250-4707

Sadat Nabi, Hasan ; Pentcheva, Rossitza ; Ranjan, Rajeev (2011) Ab initio electronic structures of rhombohedral and cubic HgXO₃ (X = Ti, Pb) Journal of Physics: Condensed Matter, 22 (4). 045504. ISSN 0953-8984

Ranjan, Rajeev ; Senyshyn, Anatoliy ; Garg, Rohini ; Boysen, Hans (2011) Magnetic structure and magneto-elastic-structural coupling in Cr-modified SrRuO₃: A neutron powder diffraction study Journal of Applied Physics, 109 (7). 073908. ISSN 0021-8979

Ranjan, Rajeev ; Kothai, V. ; Senyshyn, Anatoliy ; Boysen, Hans (2011) Neutron diffraction study of the coupling between spin, lattice, and structural degrees of freedom in 0.8BiFeO₃-0.2PbTiO₃ Journal of Applied Physics, 109 (6). 063522. ISSN 0021-8979

Chakraborty, J. ; Kumar, Kishor ; Ranjan, Rajeev ; Chowdhury, S. Ghosh ; Singh, S.R. (2011) Thickness-dependent fcc–hcp phase transformation in polycrystalline titanium thin films Acta Materialia, 59 (7). pp. 2615-2623. ISSN 1359-6454

Ranjan, Rajeev ; Boysen, Hans (2010) Phase changes in Na_1/2Pr_1/2TiO₃: A synchrotron X-ray powder diffraction study Solid State Communications, 150 (25-26). pp. 1128-1131. ISSN 0038-1098

Ranjan, Rajeev ; Garg, Rohini ; Kothai, V ; Agrawal, Anupriya ; Senyshyn, Anatoliy ; Boysen, Hans (2010) Phases in the (1 −x)Na_0.5Bi_0.5TiO₃–(x)CaTiO₃ system Journal of Physics: Condensed Matter, 22 (7). 075901. ISSN 0953-8984

Chakraborty, Jay ; Kumar, Kishor ; Ranjan, R. ; Chowdhury, Sandip Ghosh ; Singh, S.R. (2010) Stress, Texture and Phase Transformation in Titanium Thin Films Solid State Phenomena, 160 . pp. 109-116. ISSN 1012-0394

Singh, Sanjay ; Maniraj, M. ; D’Souza, S. W. ; Ranjan, R. ; Barman, S. R. (2010) Structural transformations in Mn₂NiGa due to residual stress Applied Physics Letters, 96 (8). 081904. ISSN 0003-6951

Ranjan, Rajeev ; Raju, K. Appala (2010) Unconventional mechanism of stabilization of a tetragonal phase in the perovskite ferroelectric(PbTiO₃)_1−x(BiFeO₃)_x Physical Review B: Condensed Matter and Materials Physics, 82 (5). ISSN 1098-0121

Kalyani, Ajay Kumar ; Garg, Rohini ; Ranjan, Rajeev (2009) Competing A-site and B-site driven ferroelectric instabilities in the (1−x)PbTiO₃-(x)BiAlO₃ system Applied Physics Letters, 94 (20). p. 202903. ISSN 0003-6951

Ranjan, Rajeev ; Singh, Sanjay ; Boysen, Hans ; Trots, Dmytro ; Banik, S. ; Awasthi, A. M. ; Mukhopadhyay, P. K. ; Barman, S. R. (2009) Competing tetragonal and monoclinic phases in Ni_2.2Mn_0.80Ga Journal of Applied Physics, 106 (3). 033510. ISSN 0021-8979

Ranjan, Rajeev ; Kothai, V. ; Garg, Rohini ; Agrawal, Anupriya ; Senyshyn, Anatoliy ; Boysen, Hans (2009) Degenerate rhombohedral and orthorhombic states in Ca-substituted Na_0.5Bi_0.5TiO₃ Applied Physics Letters, 95 (4). 042904. ISSN 0003-6951

Ranjan, Rajeev ; Nabi, Hasan Sadat ; Pentcheva, Rossitza (2009) First principles study of magnetism in divalent Eu perovskites Journal of Applied Physics, 105 (5). 053905. ISSN 0021-8979

Ranjan, Rajeev ; Garg, Rohini ; Senyshyn, Anatoliy ; Hegde, M S ; Ehrenberg, Helmut ; Boysen, Hans (2009) Magneto-structural study of a Cr-doped CaRuO₃ Journal of Physics: Condensed Matter, 21 (32). p. 326001. ISSN 0953-8984

Singh, Sarab Preet ; Ranjan, Rajeev ; Senyshyn, Anatoliy ; Trots, Dmytro ; Boysen, Hans (2009) Structural phase transition study of the morphotropic phase boundary compositions of Na_0.5Bi_0.5TiO₃–PbTiO₃ Journal of Physics: Condensed Matter, 21 (37). p. 375902. ISSN 0953-8984

Ranjan, Rajeev ; Kalyani, Ajay Kumar ; Garg, Rohini ; Krishna, P.S.R. (2009) Structure and phase transition of the (1−x)PbTiO₃−(x)BiAlO₃ system Solid State Communications, 149 (45-46). pp. 2098-2101. ISSN 0038-1098

Garg, Rohini ; Senyshyn, Anatoliy ; Boysen, Hans ; Ranjan, Rajeev (2009) Structure of the noncubic phase in the ferroelectric state of Pr-substituted SrTiO₃ Physical Review B: Condensed Matter and Materials Physics, 79 (14). ISSN 1098-0121

Kalyani, Ajay Kumar ; Garg, Rohini ; Ranjan, Rajeev (2009) Tendency to promote ferroelectric distortion in Pr-modified PbTiO₃ Applied Physics Letters, 95 (22). p. 222904. ISSN 0003-6951

Ranjan, Rajeev ; Garg, Rohini ; Hackl, Rudi ; Senyshyn, Anatoliy ; Schmidbauer, Elmar ; Trots, Dmytro ; Boysen, Hans (2008) Onset of spontaneous electrostrictive strain below 520 K in Pr-doped SrTiO₃ Physical Review B: Condensed Matter and Materials Physics, 78 (9). ISSN 1098-0121

Garg, Rohini ; Senyshyn, Anatoliy ; Boysen, Hans ; Ranjan, Rajeev (2008) Structure and phase transition of Na_0.5La_0.5TiO₃ Journal of Physics: Condensed Matter, 20 (50). p. 505215. ISSN 0953-8984

Ranjan, Rajeev (2008) Subtle Structural Distortions In Some Dielectric perovskites Journal of the Indian Institute of Science, 88 (2). pp. 211-233. ISSN 0970-4140

Ranjan, Rajeev ; Senyshyn, Anatoliy ; Boysen, Hans ; Baehtz, Carsten ; Frey, Friedrich (2007) Crystal structures of Na_1/2Ln_1/2TiO₃ (Ln: La, Eu, Tb) Journal of Solid State Chemistry, 180 (3). pp. 995-1001. ISSN 0022-4596

Ranjan, Rajeev ; Sadat Nabi, Hasan ; Pentcheva, Rossitza (2007) Electronic structure and magnetism of EuTiO₃: a first-principles study Journal of Physics: Condensed Matter, 19 (40). p. 406217. ISSN 0953-8984

Ranjan, Rajeev ; Hackl, Rudi ; Chandra, Amreesh ; Schmidbauer, Elmar ; Trots, Dmytro ; Boysen, Hans (2007) High-temperature relaxor ferroelectric behavior in Pr-doped SrTiO₃ Physical Review B: Condensed Matter and Materials Physics, 76 (22). ISSN 1098-0121

Ranjan, Rajeev ; Senyshyn, Anatoliy ; Vashook, Vladimir ; Niewa, Rainer ; Boysen, Hans ; Frey, Friedrich (2007) Structural stability of conducting oxide CaRuO₃ at high temperatures Applied Physics Letters, 90 (25). p. 251913. ISSN 0003-6951

Banik, S. ; Ranjan, R. ; Chakrabarti, A. ; Bhardwaj, S. ; Lalla, N. P. ; Awasthi, A. M. ; Sathe, V. ; Phase, D. M. ; Mukhopadhyay, P. K. ; Pandey, D. ; Barman, S. R. (2007) Structural studies of Ni_2+xMn_1−xGa by powder x-ray diffraction and total energy calculations Physical Review B: Condensed Matter and Materials Physics, 75 (10). ISSN 1098-0121

Awana, V.P.S. ; Ranjan, Rajeev ; Rawat, Rajeev ; Chandra, L.S. Sharath ; Peurla, M. ; Ganesan, V. ; Kishan, H. ; Pandey, D. ; Laiho, R. ; Takayama-Muromachi, E. ; Narlikar, A.V. (2006) Anomalous lattice expansion of RuSr₂Eu_1.5Ce_0.5Cu₂O_10−δ (Ru-1222) magneto superconductor: A low temperature X-ray diffraction study Physica C: Superconductivity, 445-44 . pp. 97-101. ISSN 0921-4534

Ranjan, Rajeev ; Agrawal, Anupriya ; Senyshyn, Anatoliy ; Boysen, Hans (2006) Crystal structures of high temperature quantum paraelectrics Na_1/2Nd_1/2TiO₃ and Na_1/2Pr_1/2TiO₃ Journal of Physics: Condensed Matter, 18 (41). L515-L522. ISSN 0953-8984

Banik, S. ; Chakrabarti, Aparna ; Kumar, U. ; Mukhopadhyay, P. K. ; Awasthi, A. M. ; Ranjan, R. ; Schneider, J. ; Ahuja, B. L. ; Barman, S. R. (2006) Phase diagram and electronic structure of Ni_2+xMn_1−xGa Physical Review B: Condensed Matter and Materials Physics, 74 (8). ISSN 1098-0121

Ranjan, Rajeev ; Agrawal, Anupriya ; Senyshyn, Anatoliy ; Boysen, Hans (2006) Phases in the system Na_1/2Nd_1/2TiO₃–SrTiO₃: a powder neutron diffraction study Journal of Physics: Condensed Matter, 18 (42). pp. 9679-9690. ISSN 0953-8984

Ranjan, Rajeev ; Banik, S. ; Barman, S. R. ; Kumar, U. ; Mukhopadhyay, P. K. ; Pandey, Dhananjai (2006) Powder x-ray diffraction study of the thermoelastic martensitic transition in Ni₂Mn_1.05Ga_0.95 Physical Review B: Condensed Matter and Materials Physics, 74 (22). ISSN 1098-0121

Mishra, Sanjay Kumar ; Ranjan, Rajeev ; Pandey, Dhananjai ; Stokes, H T (2006) Resolving the controversies about the ‘nearly cubic’ and other phases of Sr_1−xCa_xTiO₃(0≤x≤1): I. Room temperature structures Journal of Physics: Condensed Matter, 18 (6). pp. 1885-1898. ISSN 0953-8984

Mishra, Sanjay Kumar ; Ranjan, Rajeev ; Pandey, Dhananjai ; Ranson, Pierre ; Ouillon, Robert ; Pinan-Lucarre, Jean-Paul ; Pruzan, Philippe (2006) Resolving the controversies about the ‘nearly cubic’ and other phases of Sr_1−xCa_xTiO₃(0≤x≤1): II. Comparison of phase transition behaviours for x= 0.40 and 0.43 Journal of Physics: Condensed Matter, 18 (6). pp. 1899-1912. ISSN 0953-8984

Chandra, Amreesh ; Ranjan, Rajeev ; Singh, D P ; Khare, Neeraj ; Pandey, Dhananjai (2006) The effect of Pb²⁺ substitution on the quantum paraelectric behaviour of CaTiO₃ Journal of Physics: Condensed Matter, 18 (11). pp. 2977-2994. ISSN 0953-8984

Ranjan, Rajeev ; Singh, Akhilesh Kumar ; Ragini, . ; Pandey, Dhananjai (2005) Comparison of theCcandR3cspace groups for the superlattice phase of Pb(Zr_0.52Ti_0.48)O₃ Physical Review B: Condensed Matter and Materials Physics, 71 (9). ISSN 1098-0121

Pandey, Dhananjai ; Singh, Akhilesh Kumar ; Ranjan, Rajeev (2005) Monoclinic Phases in the Pb(Zr_xTi_1-x)O₃ Ceramics Ferroelectrics, 325 (1). pp. 35-42. ISSN 0015-0193

Ranjan, Rajeev ; Dviwedi, Akansha (2005) Structure and dielectric properties of (Na_0.50Bi_0.50)1−xBa_xTiO₃: 0≤x≤0.10 Solid State Communications, 135 (6). pp. 394-399. ISSN 0038-1098

Mishra, Sanjay Kumar ; Ranjan, Rajeev ; Pandey, Dhananjai ; Ranson, Pierre ; Ouillon, Robert ; Pinan-Lucarre, Jean-Paul ; Pruzan, Philippe (2005) A combined X-ray diffraction and Raman scattering study of the phase transitions in Sr_1−xCa_xTiO₃ (x=0.04, 0.06, and 0.12) Journal of Solid State Chemistry, 178 (9). pp. 2846-2857. ISSN 0022-4596

Ranson, P. ; Ouillon, R. ; Pinan-Lucarre, J.-P. ; Pruzan, Ph. ; Mishra, S. K. ; Ranjan, R. ; Pandey, D. (2005) The various phases of the system Sr_1-xCa_xTiO₃—A Raman scattering study Journal of Raman Spectroscopy, 36 (9). pp. 898-911. ISSN 0377-0486

Ranjan, Rajeev ; Ragini, . ; Mishra, S. K. ; Pandey, Dhananjai ; Kennedy, Brendan J. (2002) Antiferrodistortive phase transition in Pb(Ti_0.48Zr_0.52)O₃ :A powder neutron diffraction study Physical Review B, 65 (6). ISSN 0163-1829

Hatch, D. M. ; Stokes, H. T. ; Ranjan, Rajeev ; Ragini, . ; Mishra, S. K. ; Pandey, Dhananjai ; Kennedy, Brendan J. (2002) Antiferrodistortive phase transition in Pb(Ti_0.48Zr_0.52)O₃ :Space group of the lowest temperature monoclinic phase Physical Review B, 65 (21). ISSN 0163-1829

Mishra, Sanjay Kumar ; Ranjan, Rajeev ; Pandey, Dhananjai ; Kennedy, Brendan J. (2002) Powder neutron diffraction study of the antiferroelectric phase transition in Sr_0.75Ca_0.25TiO₃ Journal of Applied Physics, 91 (7). pp. 4447-4452. ISSN 0021-8979

Ouillon, R ; Pinan-Lucarre, J-P ; Ranson, P ; Pruzan, Ph ; Mishra, Sanjay Kumar ; Ranjan, Rajeev ; Pandey, Dhananjai (2002) A Raman scattering study of the phase transitions in SrTiO₃ and in the mixed system (Sr_1-xCa_x)TiO₃ at ambient pressure from T= 300 K down to 8 K Journal of Physics: Condensed Matter, 14 (8). pp. 2079-2092. ISSN 0953-8984

Ragini, . ; Ranjan, Rajeev ; Mishra, S. K. ; Pandey, Dhananjai (2002) Room temperature structure of Pb(Zr_xTi_1−xO₃) around the morphotropic phase boundary region: A Rietveld study Journal of Applied Physics, 92 (6). pp. 3266-3274. ISSN 0021-8979

Ranjan, Rajeev ; Pandey, Dhananjai (2001) Antiferroelectric phase transition in (Sr_1-xCa_x)TiO₃(0.12<x≤0.40): I. Dielectric studies Journal of Physics: Condensed Matter, 13 (19). pp. 4239-4249. ISSN 0953-8984

Ranjan, Rajeev ; Pandey, Dhananjai (2001) Antiferroelectric phase transition in (Sr_1-xCa_x)TiO₃: II. X-ray diffraction studies Journal of Physics: Condensed Matter, 13 (19). pp. 4251-4266. ISSN 0953-8984

Ranjan, Rajeev ; Pandey, Dhananjai ; Schuddinck, W. ; Richard, O. ; De Meulenaere, P. ; Van Landuyt, J. ; Van Tendeloo, G. (2001) Evolution of Crystallographic Phases in (Sr_1−xCa_x)TiO₃ with Composition (x) Journal of Solid State Chemistry, 162 (1). pp. 20-28. ISSN 0022-4596

Mishra, Sanjay Kumar ; Ranjan, Rajeev ; Pandey, Dhananjai ; Ouillon, R. ; Pinan-Lucarre, J.-P. ; Ranson, P. ; Pruzan, Ph. (2001) A Raman scattering study of the antiferroelectric phase transition in (Sr_0.70Ca_0.30)TiO3₃ Physical Review B, 64 (9). ISSN 0163-1829

Ranjan, Rajeev ; Pandey, Dhananjai ; Lalla, Niranjan Prasad (2000) Novel Features of Sr_1−xCa_xTiO₃ Phase Diagram: Evidence for Competing Antiferroelectric and Ferroelectric Interactions Physical Review Letters, 84 (16). pp. 3726-3729. ISSN 0031-9007

Ranjan, Rajeev ; Pandey, Dhananjai ; Siruguri, V ; Krishna, P S R ; Paranjpe, S K (1999) Novel structural features and phase transition behaviour of (Sr_1-xCa_x)TiO₃: I. Neutron diffraction study Journal of Physics: Condensed Matter, 11 (10). pp. 2233-2246. ISSN 0953-8984

Ranjan, Rajeev ; Pandey, Dhananjai (1999) Novel structural features and phase transition behaviour of (Sr_1-xCa_x)TiO₃: II. X-ray diffraction studies Journal of Physics: Condensed Matter, 11 (10). pp. 2247-2258. ISSN 0953-8984

Pokharel, Bhadra P. ; Ranjan, Rajeev ; Pandey, Dhananjai ; Siruguri, V. ; Paranjpe, S. K. (1999) Rhombohedral superlattice structure and relaxor ferroelectric behavior of (Pb_0.80Ba_0.20)ZrO₃ ceramics Applied Physics Letters, 74 (5). pp. 756-758. ISSN 0003-6951

Ranjan, Rajeev ; Singh, Neelam ; Pandey, Dhananjai ; Siruguri, V. ; Krishna, P. S. R. ; Paranjpe, S. K. ; Banerjee, Alok (1997) Room temperature crystal structure and relaxor ferroelectric behavior of Pb_0.5Ca_0.5TiO₃ Applied Physics Letters, 70 (24). pp. 3221-3223. ISSN 0003-6951