| Numéro |
J. Phys. Colloques
Volume 42, Numéro C6, Décembre 1981
International Conference on Phonon Physics
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|
|---|---|---|
| Page(s) | C6-238 - C6-240 | |
| DOI | https://doi.org/10.1051/jphyscol:1981668 | |
International Conference on Phonon Physics
J. Phys. Colloques 42 (1981) C6-238-C6-240
DOI: 10.1051/jphyscol:1981668
Institut für Theoretische Physik, Universität Stuttgart, 7000 Stuttgart 80, F.R.G.
J. Phys. Colloques 42 (1981) C6-238-C6-240
DOI: 10.1051/jphyscol:1981668
PHONON AND PSEUDO-MAGNON TRANSPORT IN COOPERATIVE JAHN-TELLER SYSTEMS
M. Wagner, W. Mutscheller et H.-K. NusserInstitut für Theoretische Physik, Universität Stuttgart, 7000 Stuttgart 80, F.R.G.
Abstract
Stimulated by measurements of Daudin and Salce it is shown that in E-b1, b2 systems like TmVO4 one-phonon scattering is of minor importance for phonon transport. Strong effects onto the heat conductivity arise from the new transport path of the pseudo-magnon system and from the 2 phonon-1 magnon relaxation path. Explicite expressions are given.