Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/8867
Title: Theoretical study of ABO<sub>3</sub> type perovskite with reference to KNbO<sub>3</sub>
Authors: Singh, Kuldeep
Bhatt, S C
Semwal, B S
Keywords: Perovskite
Polarization
Shift and width
Spring constants
Issue Date: Oct-2005
Publisher: CSIR
Abstract: One-dimensional model study has been carried out for KNbO<sub>3</sub> system by the model Hamiltonian proposed by B D Silverman. Third and fourth order coupling constants, change in coupling constants by doping, spring constants, shift and width have been calculated and the variation of polarization mode frequency and polarization per unit electric field with temperature (<i style="">T</i>) has been obtained for KNbO<sub>3</sub> system. The values obtained are also compared with the values obtained by the Hamiltonian proposed by Pytte.
Description: 772-776
URI: http://hdl.handle.net/123456789/8867
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.43(10) [October 2005]

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