| Numéro |
J. Phys. Colloques
Volume 42, Numéro C6, Décembre 1981
International Conference on Phonon Physics
|
|
|---|---|---|
| Page(s) | C6-596 - C6-598 | |
| DOI | https://doi.org/10.1051/jphyscol:19816174 | |
International Conference on Phonon Physics
J. Phys. Colloques 42 (1981) C6-596-C6-598
DOI: 10.1051/jphyscol:19816174
Department of Physics, University of Nottingham, Nottingham NG7 2RD, England
J. Phys. Colloques 42 (1981) C6-596-C6-598
DOI: 10.1051/jphyscol:19816174
SPIN-LATTICE INTERACTION IN CERIUM ETHYLSULPHATE
F.W. SheardDepartment of Physics, University of Nottingham, Nottingham NG7 2RD, England
Abstract
The enhancement of the Schottky specific-heat peak of cerium ethyl-sulphate has been explained by Fletcher and Sheard using a model in which the Ce3+ ion levels are coupled to a temperature dependent lattice strain mode. This theory is used to calculate the temperature dependence of the magnetic susceptibility, which is most sensitive to the effects of the lattice mode when the magnetic field is perpendicular to the trigonal axis. The experimenta1 results support the theory but a detailed comparison is not possible owing to absence of data in the crucial 4-13K range.