Items where Author is "Ray, Sugata"

Article

Middey, S. ; Aich, Payel ; Meneghini, C. ; Mukherjee, K. ; Sampathkumaran, E. V. ; Siruguri, V. ; Mahadevan, P. ; Ray, Sugata (2016) Metal-insulator transition in Ba₃Fe_1−xRu_2+xO₉ : Interplay between site disorder, chemical percolation, and electronic structure Physical Review B: Condensed Matter and Materials Physics, 94 (18). Article ID 184424. ISSN 2469-9950

Middey, Srimanta ; Ray, Sugata ; Mukherjee, K. ; Paulose, P. L. ; Sampathkumaran, E. V. ; Meneghini, C. ; Kaushik, S. D. ; Siruguri, V. ; Kaushik, S. D. ; Siruguri, V. ; Kovnir, Kirill ; Sarma, D. D. (2011) Glasslike ordering and spatial inhomogeneity of magnetic structure in Ba₃FeRu₂O₉: role of Fe/Ru site disorder Physical Review B: Condensed Matter and Materials Physics, 83 (14). 144419_1-144419_8. ISSN 1098-0121

Meneghini, C. ; Ray, Sugata ; Liscio, F. ; Bardelli, F. ; Mobilio, S. ; Sarma, D. D. (2009) Nature of "Disorder" in the ordered double perovskite Sr₂FeMoO₆ Physical Review Letters, 103 (4). 046403_1-046403_4. ISSN 0031-9007

Bardelli, F. ; Meneghini, C. ; Mobilio, S. ; Ray, Sugata ; Sarma, D. D. (2009) Local structure of Sr₂FeMo_xW_1−xO₆ double perovskites across the composition-driven metal to insulator transition Journal of Physics: Condensed Matter, 21 (19). 195502_1-195502_9. ISSN 0953-8984

Di Castro, D. ; Dore, P. ; Khasanov, R. ; Keller, H. ; Mahadevan, P. ; Ray, Sugata ; Sarma, D. D. ; Postorino, P. (2008) Pressure effects on the magnetic transition temperature in ordered double perovskites Physical Review B: Condensed Matter and Materials Physics, 78 (18). 184416 _1-184416 _5. ISSN 1098-0121

Ray, Sugata ; Mahadevan, Priya ; Mandal, Suman ; Krishnakumar, S. R. ; Kuroda, Carlos Seiti ; Sasaki, T. ; Taniyama, Tomoyasu ; Itoh, Mitsuru (2008) High temperature ferromagnetism in single crystalline dilute Fe-doped Ba Ti O₃ Physical Review B: Condensed Matter and Materials Physics, 77 (10). Article ID 104416. ISSN 2469-9950

Marrocchelli, D. ; Postorino, P. ; Di Castro, D. ; Arcangeletti, E. ; Dore, P. ; Cestelli Guidi, M. ; Ray, Sugata ; Sarma, D. D. (2007) Pressure and temperature dependence of the Fano resonance in the Raman spectrum of A₂FeMoO₆ systems (A=Sr,Ca) Physical Review B: Condensed Matter and Materials Physics, 76 (17). 172405 _1-172405 _4. ISSN 1098-0121

Kobayashi, M. ; Tanaka, K. ; Fujimori, A. ; Ray, Sugata ; Sarma, D. D. (2007) Critical test for Altshuler-Aronov theory: evolution of the density of states singularity in double perovskite Sr₂FeMoO₆ with controlled disorder Physical Review Letters, 98 (24). 246401_1-246401_4. ISSN 0031-9007

Sarma, D. D. ; Ray, Sugata ; Tanaka, K. ; Kobayashi, M. ; Fujimori, A. ; Sanyal, P. ; Krishnamurthy, H. R. ; Dasgupta, C. (2007) Intergranular magnetoresistance in Sr₂FeMoO₆ from a magnetic tunnel barrier mechanism across grain boundaries Physical Review Letters, 98 (15). 157205_1-157205_4. ISSN 0031-9007

Liscio, F. ; Bardelli, F. ; Meneghini, C. ; Mobilio, S. ; Ray, Sugata ; Sarma, D. D. (2006) Local structure and magneto-transport in Sr₂FeMoO₆ oxides Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 246 (1). pp. 189-193. ISSN 0168-583X

Ray, Sugata ; Sarma, D. D. ; Vijayaraghavan, R. (2006) Electron-spectroscopic investigation of the metal-insulator transition in Sr₂Ru_1−xTi_xO₄ (x=0-0.6) Physical Review B: Condensed Matter and Materials Physics, 73 (16). 165105_1-165105_6. ISSN 1098-0121

Maiti, Kalobaran ; Manju, U. ; Ray, Sugata ; Mahadevan, Priya ; Inoue, I. H. ; Carbone, C. ; Sarma, D. D. (2006) Understanding the bulk electronic structure of Ca_1−xSr_xVO₃ Physical Review B: Condensed Matter and Materials Physics, 73 (5). 052508 _1-052508 _4. ISSN 1098-0121

Raj, S. ; Hashimoto, D. ; Matsui, H. ; Souma, S. ; Sato, T. ; Takahashi, T. ; Ray, Sugata ; Chakraborty, A. ; Sarma, D. D. ; Mahadevan, Priya ; McCarroll, W. H. ; Greenblatt, M. (2005) Angle-resolved photoemission spectroscopy of the metallic sodium tungsten bronzes Na_xWO₃ Physical Review B: Condensed Matter and Materials Physics, 72 (12). 125125_1-125125_8. ISSN 1098-0121

Ray, Sugata ; Mahadevan, Priya ; Kumar, Ashwani ; Sarma, D. D. ; Cimino, R. ; Pedio, M. ; Ferrari, L. ; Pesci, A. (2003) Strong correlation effects in the electronic structure of Sr₂FeMoO₆ Physical Review B: Condensed Matter and Materials Physics, 67 (8). 085109_1-085109_6. ISSN 1098-0121

Hu, Z. ; Grazioli, C. ; Knupfer, M. ; Golden, M. S. ; Fink, J. ; Mahadevan, Priya ; Kumar, Ashwani ; Ray, Sugata ; Sarma, D. D. ; Warda, S. A. ; Reinen, D. ; Kawasaki, S. ; Takano, M. ; Schüssler-Langeheine, C. ; Mazumdar, Chandan ; Kaindl, G. (2002) Difference in spin state and covalence between La_1−xSr_xCoO₃ and La_2−xSr_xLi_0.5Co_0.5O₄ Journal of Alloys and Compounds, 343 (1-2). pp. 5-13. ISSN 0925-8388

Ray, Sugata ; Kumar, Ashwani ; Sarma, D. D. ; Cimino, R. ; Turchini, S. ; Zennaro, S. ; Zema, N. (2001) Electronic and magnetic structures of Sr₂FeMoO₆ Physical Review Letters, 87 (9). 097204_1-097204_4. ISSN 0031-9007

Ray, Sugata ; Kumar, Ashwani ; Majumdar, Subham ; Sampathkumaran, E. V. ; Sarma, D. D. (2001) Transport and magnetic properties of Sr₂FeMo_xW_1−xO₆ Journal of Physics: Condensed Matter, 13 (4). pp. 607-616. ISSN 0953-8984

Sarma, D. D. ; Mahadevan, Priya ; Saha-Dasgupta, T. ; Ray, Sugata ; Kumar, Ashwani (2000) Electronic structure of Sr₂FeMoO₆ Physical Review Letters, 85 (12). pp. 2549-2552. ISSN 0031-9007

Sarma, D. D. ; Sampathkumaran, E. V. ; Ray, Sugata ; Nagarajan, R. ; Majumdar, Subham ; Kumar, Ashwani ; Nalini, G. ; Guru Row, T. N. (2000) Magnetoresistance in ordered and disordered double perovskite oxide, Sr₂FeMoO₆ Solid State Communications, 114 (9). pp. 465-468. ISSN 0038-1098