| Issue |
J. Phys. Colloques
Volume 39, Number C6, Août 1978
The XVth International Conference on low temperature physicsQuantum Fluids and Solids Superconductivity |
|
|---|---|---|
| Page(s) | C6-446 - C6-447 | |
| DOI | https://doi.org/10.1051/jphyscol:19786200 | |
The XVth International Conference on low temperature physics
Quantum Fluids and Solids
Superconductivity
J. Phys. Colloques 39 (1978) C6-446-C6-447
DOI: 10.1051/jphyscol:19786200
1 Sandia Laboratories, Div. 5151, Albuquerque, N.M. 87155, U.S.A.
2 A.P. Sloan Foundation Fellow
3 Physics Department, University of California, Los Angeles, Ca. 90024, U.S.A.
4 D.Ph./S.R.M., C.E.N. Saclay, B.P. 2, 91190 Gif-sur-Yvette, France
Quantum Fluids and Solids
Superconductivity
J. Phys. Colloques 39 (1978) C6-446-C6-447
DOI: 10.1051/jphyscol:19786200
THERMOPOWER OF (SN)x AT LOW TEMPERATURES
L.J. Azevedo1, P.M. Chaikin2, W.G. Clark3, W.W. Fuller3 and J. Hammann41 Sandia Laboratories, Div. 5151, Albuquerque, N.M. 87155, U.S.A.
2 A.P. Sloan Foundation Fellow
3 Physics Department, University of California, Los Angeles, Ca. 90024, U.S.A.
4 D.Ph./S.R.M., C.E.N. Saclay, B.P. 2, 91190 Gif-sur-Yvette, France
Résumé
Nous avons mesuré le pouvoir thermoélectrique de (SN)x entre 0,1 K et 4,2 K. Au-dessus de 1 K, une importante contribution du processus de "phonon drag" a été observée, ce qui peut être associé à une forte interaction électron-phonon. En dessous de 1 K, on obtient un comportement qui résulte de la présence, d'une part d'une effet Kondo à faible TK, et d'autre part de la transition supraconductrice.
Abstract
We have measured the thermoelectric power of (SN)x from 0.1 K to 4.2 K. A large phonon drag contribution is observed above 1 K which can be associated with strong electron-phonon scattering. The superconducting transition is seen as well as rising thermopower contribution below 1 K resulting from a Kondo effect with low TK.