Abstract
CeCu2Si2 single crystals prepared with an excess of Cu exhibit low\nresidual resistivity , low susceptibility , small unit-cell volume\nV, and bulk "heavy-fermion" superconductivity below 0.65 K, while\ncrystals grown from stoichiometric melt show higher rho0 and chi,\nlarger V, but no superconductivity. CeCu2Si2 behaves as an s-state\nsuperconductor with strongly temperature-dependent pair breaking\nand almost isotropic Fermi surface.
Originalsprache | Englisch |
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Zeitschrift | Phys. Rev. Lett. |
Jahrgang | 52 |
Ausgabenummer | 6 |
Seiten (von - bis) | 469-470 |
Seitenumfang | 2 |
ISSN | 0031-9007 |
DOIs | |
Publikationsstatus | Veröffentlicht - 1984 |