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Intrinsic lifetimes and anharmonic frequency shifts of long-wavelength optical phonons in polar crystals

Deinzer, Gernot , Schmitt, Michael, Mayer, Andreas P. and Strauch, Dieter (2004) Intrinsic lifetimes and anharmonic frequency shifts of long-wavelength optical phonons in polar crystals. Physical Review B 69, 014304.

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Date of publication of this fulltext: 05 Aug 2009 13:35

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Other URL: http://link.aps.org/doi/10.1103/PhysRevB.69.014304


Abstract

Quantitative calculations of phonon lifetimes due to anharmonic three-phonon processes require knowledge of cubic anharmonic coupling coefficients. In order to determine the temperature dependence of phonon frequencies, anharmonic force constants of up to fourth order are needed. In polar crystals, the macroscopic electric field gives rise to nonanalytic terms in these coefficients. It is shown ...

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Item type:Article
Date:30 January 2004
Institutions:Physics > Institute of Theroretical Physics > Alumni or Retired Professors > Group Dieter Strauch
Identification Number:
ValueType
10.1103/PhysRevB.69.014304DOI
Dewey Decimal Classification:500 Science > 530 Physics
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Item ID:1970
Owner only: item control page

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