ELECTRON-TUNNELING INTO SUPERCONDUCTING CERU12

Authors
EKINO T FUJII H NAKAMA T YAGASAKI K
Citation
T. Ekino et al., ELECTRON-TUNNELING INTO SUPERCONDUCTING CERU12, Physical review. B, Condensed matter, 56(13), 1997, pp. 7851-7854
Citations number
16
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
56
Issue
13
Year of publication
1997
Pages
7851 - 7854
Database
ISI
SICI code
0163-1829(1997)56:13<7851:EISC>2.0.ZU;2-C
Abstract
The superconducting energy gap of CeRu2 has been studied by break-junc tion tunneling. The observed gap values 2 Delta(0) = 1.9-2.6 meV with T-c = 5.4-6.7 K give the ratio 2 Delta(0)/k(B)T(c) = 4.1-4.4, indicati ng a strong coupling superconductor. The temperature dependence of the gap value is in good agreement with the BCS prediction.