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Title: Lattice dynamics of thorium pnictides and chalcogenides
Authors: Aynyas, Mahendra
Jha, P K
Sanyal, Sankar P
Keywords: Lattice dynamics
Thorium pnictides
Phonon spectra
Issue Date: Feb-2005
Publisher: CSIR
Series/Report no.: B01D 9/00
Abstract: The phonon spectra of thorium pnictides and chalcogenides (ThX) have been analysed using rigid ion and breathing shell models, in view of their structural properties at high pressure. The significance of these two approaches in predicting the dynamical properties of ThX compounds has been discussed and the role of f-electron has been examined. The dominant ionic nature of bonding has been predicted for ThX compound from the large LO-TO phonon splitting at zone centre. The low temperature specific heat for these compounds has been reported.
Description: 109-114
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.43(02) [February 2005]

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