Phonon dynamics in a compressible classical Heisenberg chain
- 1 June 1980
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 21 (11) , 5330-5337
- https://doi.org/10.1103/physrevb.21.5330
Abstract
The dynamic properties of the compressible classical Heisenberg chain with bilinear coupling are investigated. The sound velocity is calculated exactly. The Fourier-transformed displacement-displacement correlation function is studied as a function of temperature, wave vector, and the model parameters. For this calculation a continued-fraction approximation is used.Keywords
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