| Issue |
J. Phys. Colloques
Volume 39, Number C6, Août 1978
The XVth International Conference on low temperature physicsQuantum Fluids and Solids Superconductivity |
|
|---|---|---|
| Page(s) | C6-1104 - C6-1105 | |
| DOI | https://doi.org/10.1051/jphyscol:19786489 | |
Quantum Fluids and Solids
Superconductivity
J. Phys. Colloques 39 (1978) C6-1104-C6-1105
DOI: 10.1051/jphyscol:19786489
FERMI SURFACE, TRANSPORT AND SUPERCONDUCTING PROPERTIES OF GRAPHITE INTERCALATION COMPOUNDS
S. Tanuma, K. Higuchi, H. Suematsu and Y. KoikeInstitute for Solid State Physics, University of Tokyo, Rappongi, Minatoku, Tokyo, 106 Japan
Résumé
On a construit la surface de Fermi du composé intercalaire graphite-potassium C48K et C36K afin qu'elle soit adaptée au cycle observé de Haas-van Alphen. L'étude de la résistance magnétique a permis de présenter l'orbite ouverte prévue. On observe la supra-conductivité du composé C8K à 134 mK ; on trouve une forte anisotropie du Hc2. On étudie aussi les composés graphite-brome par des méthodes similaires.
Abstract
The Fermi surfaces of graphite-potassium intercalation compounds, C48 K and C36K, were composed in such a way that the observed de Haas-van Alphen periods were fitted. The predicted open orbits were proved by the magneto-resistance study. Superconductivity of C8K compound was observed at 134 mK. A large anisotropy of Hc2 was found. Graphite-bromine compounds were also studied by a similar method.