| Issue |
J. Phys. Colloques
Volume 42, Number C6, Décembre 1981
International Conference on Phonon Physics
|
|
|---|---|---|
| Page(s) | C6-229 - C6-231 | |
| DOI | https://doi.org/10.1051/jphyscol:1981665 | |
International Conference on Phonon Physics
J. Phys. Colloques 42 (1981) C6-229-C6-231
DOI: 10.1051/jphyscol:1981665
1 Department of Physics, University of Nottingham, Nottingham NG7 2RD, U.K.
2 The General Elerctric Co Ltd, Hirst Research Centre, Wembley, Middx, U.K.
J. Phys. Colloques 42 (1981) C6-229-C6-231
DOI: 10.1051/jphyscol:1981665
FREQUENCY CROSSING IN BICRYSTALS AND INELASTIC SCATTERING AT SURFACES
L.J. Challis1, A.A. Ghazi1 et M.N. Wybourne1, 21 Department of Physics, University of Nottingham, Nottingham NG7 2RD, U.K.
2 The General Elerctric Co Ltd, Hirst Research Centre, Wembley, Middx, U.K.
Abstract
It has been demonstrated experimentally and theoretically that frequency crossing signals in thermal conduction can be produced between different resonant scattering centres on either side of an interface. The measurements were carried out on an Al2O3 bicrystal doped with Fe2+ in one half and V3+ in the other. The signals are observed to decay with distance from the interface and this is interpreted as the result of inelastic scattering at the crystal surface.