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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.43 [2005] >
IJPAP Vol.43(02) [February 2005] >
| Title: | Lattice dynamics of thorium pnictides and chalcogenides |
| Authors: | Aynyas, Mahendra
Jha, P K
Sanyal, Sankar P |
| Keywords: | Lattice dynamics
Thorium pnictides
Chalcogenides
Phonon spectra |
| Issue Date: | Feb-2005 |
| Publisher: | CSIR |
| IPC Code: | 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. |
| Page(s): | 109-114 |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.43(02) [February 2005]
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