Influence of Terahertz Frequency on the Elastic Constants …
105
69. B. Mitra, K.P. Ghatak, i., 32, 177 (1989)
70. K.P. Ghatak, M. Mondal, J. Appl. Phys. 62, 922 (1987)
71. M. Mondal, K.P. Ghatak, J. Magnet. Magnetic Mat. 62, 115 (1986); M. Mondal, K.P. Ghatak,
Phys. Script. 31, 613 (1985)
72. K.P. Ghatak, M. Mondal, Z. fur Physik B, 64, 223 (1986)
73. K.P. Ghatak, S.N. Biswas, Sol. State Electron. 37, 1437 (1994). D.R. Choudhury, A.K.
Chowdhury, K.P. Ghatak, A.N. Chakravarti, Phys. Stat. Sol. (b) 98, (K141) (1980)
74. A.N. Chakravarti, A.K. Chowdhury, K.P. Ghatak, Phys. Stat. Sol. (a) 63, K97 (1981)
75. M. Mondal, K. P. Ghatak, Acta Phys. Polon. A 67, 983 (1985); M. Mondal, K.P. Ghatak, Phys.
Stat. Sol. (b) 128, K21 (1985)
76. M. Mondal, K. P. Ghatak, Phys. Stat. Sol. (a) 93, 377 (1986); K.P. Ghatak, M. Mondal, Phys.
Stat. Sol. (b) 135, 819 (1986); M. Mondal, K.P. Ghatak, Phys. Stat. Sol. (b) 139, 185 (1987)
77. K.P. Ghatak, N. Chattopadhyay, S.N. Biswas, OE/Fibers’ 87, 203 (1987)
78. K.P. Ghatak, N. Chatterjee, M. Mondal, Phys. Stat. Sol. (b) 139, K25 (1987); K.P. Ghatak, M.
Mondal, Phys. Stat. Sol. (b) 148, 645 (1988); K. P. Ghatak, A. Ghosal, Phys. Stat. Sol. (b) 151,
K135 (1989); K.P. Ghatak, N. Chattopadhyay, M. Mondal, Appl. Phys. A 48, 365 (1989)