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Iyengar, P. K. (1993) Current status of nuclear science education and training in India Journal of Radioanalytical and Nuclear Chemistry, 171 (1). pp. 33-43. ISSN 0236-5731

Iyengar, P. K. (1987) Developments in neutron scattering techniques for solid state research Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 255 (1-2). pp. 253-261. ISSN 0168-9002

Rao, K. R. P. M. ; Iyengar, P. K. (1986) A static and dynamical Mossbauer study of photochemical biological switch of valence states in the respiratory pigments of Rhodospirillum rubrum bacterium Physics Letters A, 115 (4). pp. 187-190. ISSN 0375-9601

Iyengar, P. K. ; Rao, K. Subba (1985) Perspectives in neutron physics research Pramana - Journal of Physics, 24 (1-2). pp. 259-278. ISSN 0304-4289

Betigeri, M. G. ; David, T. P. ; Hiremath, S. C. ; Iyengar, P. K. ; Mehta, M. K. ; Raju, V. S. ; Singh, P. ; Soni, J. N. (1982) Two million volt terminal tandem accelerator Pramana - Journal of Physics, 19 (4). pp. 323-336. ISSN 0304-4289

Rao, K. R. ; Chaplot, S. L. ; Iyengar, P. K. ; Venkatesh, A. H. ; Vijayaraghavan, P. R. (1978) Inelastic neutron scattering from and lattice dynamics of α-KNO₃ Pramana - Journal of Physics, 11 (3). pp. 251-288. ISSN 0304-4289

Jaggi, N. K. ; Rao, K. R. P. M. ; Iyengar, P. K. (1977) Monte-Carlo study of spin-glass behaviour in concentrated binary magnetic systems Solid State Communications, 24 (4). pp. 309-311. ISSN 0038-1098

Bhargava, S. C. ; Iyengar, P. K. (1976) Study of hyperfine fields at iron nuclei in (Co, Fe)₅Ge₃ using the Mossbauer effect Physica Status Solidi A, 38 (2). 601–609. ISSN 0031-8965

Chandra, P. P. ; Dasannacharya, B. A. ; Goyal, P. S. ; Iyengar, P. K. ; Rao, K. R. ; Thaper, C. L. ; Venkatesh, A. H. (1976) Neutron inelastic scattering from mixed salts [(NH₄)_xK_1-x]₂SO₄ Physics Letters A, 57 (5). pp. 463-464. ISSN 0375-9601

Rao, K. R. P. M. ; Iyengar, P. K. (1975) Mossbauer spectroscopy study of short-range magnetic ordering in Co–Ga (Fe⁵⁷) intermetallic compounds Physica Status Solidi A, 30 (1). 397–401. ISSN 0031-8965

Bhargava, S. C. ; Iyengar, P. K. (1974) Hyperfine interactions of iron in ternary alloys with B8₂ type structures Pramana - Journal of Physics, 2 (3). pp. 126-137. ISSN 0304-4289

Dasannacharya, B. A. ; Iyengar, P. K. ; Nandedkar, R. V. ; Rao, K. R. ; Roy, A. P. ; Thaper, C. L. (1974) Lattice dynamics of beryllium Pramana - Journal of Physics, 2 (4). pp. 179-188. ISSN 0304-4289

Thaper, C. L. ; Dasannacharya, B. A. ; Iyengar, P. K. (1973) Phonon measurements on a filter-detector spectrometer and its resolution function Nuclear Instruments and Methods, 133 (1). pp. 15-28. ISSN 0029-554X

Rao, K. R. P. M. ; Iyengar, P. K. (1973) Mossbauer effect study of the hyperfine field at the tin site in PtMnSn Physica Status Solidi B, 59 (1). 297–302. ISSN 0370-1972

Roy, A. P. ; Dasannacharya, B. A. ; Thaper, C. L. ; Iyengar, P. K. (1973) Experimental evidence of breakdown of simple pseudopotential theory for lattice dynamics of beryllium Physical Review Letters, 30 (19). 906–909. ISSN 0031-9007

Rao, K. R. P. M. ; Iyengar, P. K. (1973) Local magnetic ordering of Fe impurities in Pd₂MnSn Pramana - Journal of Physics, 1 (1). pp. 53-60. ISSN 0304-4289

Bhargava, S. C. ; Iyengar, P. K. (1972) Spin fluctuations of Fe³⁺ ions in cobalt–zinc ferrites using the Mossbauer effect Physica Status Solidi B, 53 (1). 359–368. ISSN 0370-1972

Goyal, P. S. ; Dasannacharya, B. A. ; Thaper, C. L. ; Iyengar, P. K. (1972) Frequency distribution function of solid ammonia Physica Status Solidi B: Basic Research, 50 (2). pp. 701-708. ISSN 0370-1972

Iyengar, P. K. ; Bhargava, S. C. (1971) Spin fluctuations in Co_0.5Zn_0.5Fe₂O₄ using the Mossbauer effect Physica Status Solidi B, 46 (1). 117–124. ISSN 0370-1972

Thaper, C. L. ; Dasannacharya, B. A. ; Sequeira, A. ; Iyengar, P. K. (1970) Observation of librational modes of water molecules in single crystal hydrates by neutron scattering Solid State Communications, 8 (7). pp. 497-499. ISSN 0038-1098

Madhav Rao, L. ; Dasannacharya, B. A. ; Satya Murthy, N. S. ; Iyengar, P. K. (1969) Neutron scattering from short range ordered paramagnets Solid State Communications, 7 (1). pp. 123-126. ISSN 0038-1098

Thaper, C. L. ; Sequeira, A. ; Dasannacharya, B. A. ; Iyengar, P. K. (1969) Neutron inelastic scattering studies in crystal hydrates Physica Status Solidi B: Basic Research, 34 (1). pp. 279-291. ISSN 0370-1972

Madhav Rao, L. ; Natera, M. G. ; Satya Murthy, N. S. ; Dasannacharya, B. A. ; Iyengar, P. K. (1968) Exchange integrals in CrF₂ and FeF₂ by paramagnetic neutron scattering Solid State Communications, 6 (8). pp. 593-595. ISSN 0038-1098

Madhav Rao, L. ; Satya Murthy, N. S. ; Venkataraman, G. ; Iyengar, P. K. (1968) Neutron scattering from paramagnetic chromium halides Physics Letters A, 26 (3). pp. 108-109. ISSN 0375-9601

Venkataraman, G. ; Usha Deniz, K. ; Iyengar, P. K. ; Roy, A. P. ; Vijayaraghavan, P. R. (1966) Study of the rotational behaviour of the ammonium ion in several salts by neutron spectrometry Journal of Physics and Chemistry of Solids, 27 (6-7). pp. 1103-1123. ISSN 0022-3697

Venkataraman, G. ; Usha Deniz, K. ; Iyengar, P. K. ; Vijayaraghavan, P. R. ; Roy, A. P. (1964) Anharmonicity of the torsional oscillations of the ammonium ion in NH₄Cl Solid State Communications, 2 (1). pp. 17-19. ISSN 0038-1098

Iyengar, P. K. ; Dasannacharya, B. A. ; Vijayaraghavan, P. R. ; Roy, A. P. (1962) Neutron diffraction study of antiferromagnetism in FeSn₂ Journal of the Physical Society of Japan, 17 . pp. 247-248. ISSN 0031-9015

Iyengar, P. K. ; Rao, P. N. Rama ; Venkataraman, G. ; Usha, K. (1957) A multichannel pulse amplitude analyser Proceedings of the Indian Academy of Sciences, Section A, 46 (1). pp. 61-71. ISSN 0370-0089

Ramanna, R. ; Mani, G. S. ; Iyengar, P. K. ; Iyengar, S. B. D. ; Joshi, B. V. (1955) On the determination of diffusion and slowing-down constants of ordinary water and beryllium oxide, using a pulsed neutron source Journal of Nuclear Energy (1954), 2 (2-4). pp. 145-152. ISSN 0891-3919

Ramanna, R. ; Veeraraghavan, N. ; Iyengar, P. K. (1955) Energy levels of ⁵⁶Fe and ²⁷Al by the inelastic scattering of 15 MeV neutrons Il Nuovo Cimento (1955-1965), 1 (4). pp. 623-628. ISSN 0369-3554