In:
International Journal of Modern Physics B, World Scientific Pub Co Pte Ltd, Vol. 16, No. 27 ( 2002-10-30), p. 4111-4125
Abstract:
The charge density wave (CDW) in the layered compound 2H-TaSe 2 at low temperatures has a commensurate phase, which causes super lattice points to appear in the Brillöuin zone of the undistorted phase. A Born-von Karman formalism has been employed for the calculation of phonon frequency distribution curves of 2H-TaSe 2 both in the normal and in the commensurate charge density wave (CCDW) phases. A folding technique has been adopted for the calculation in the CCDW phase. The phonon distribution for both the phases have been reported. With these distributions the thermal properties such as specific heat capacity, Debye Waller factor W(k) and thermal conductivity have been worked out, and compared with the available experimental results.
Type of Medium:
Online Resource
ISSN:
0217-9792
,
1793-6578
DOI:
10.1142/S0217979202012153
Language:
English
Publisher:
World Scientific Pub Co Pte Ltd
Publication Date:
2002
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