Self-energy of phonons in an anharmonic crystal to O(λ4)

Tripathi, R. S. ; Pathak, K. N. (1974) Self-energy of phonons in an anharmonic crystal to O(λ4) Il Nuovo Cimento B (1971-1996), 21 (2). pp. 289-302. ISSN 0369-3554

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Official URL: http://www.springerlink.com/content/h3370088251m46...

Related URL: http://dx.doi.org/10.1007/BF02737485

Abstract

General expressions for all the contributions of O(λ4) to the self-energy of phonons in an anharmonic crystal are obtained. Results obtained are valid for all temperatures. Expressions are deduced for the self-energy in the high-temperature limit which gives the width of the phonons. Relevance of these results in the study of temperature dependence of the width of the fundamental lattice vibration absorption peak in the ionic crystals is pointed out.

Item Type:Article
Source:Copyright of this article belongs to Italian Physical Society.
ID Code:56047
Deposited On:22 Aug 2011 18:23
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