Open AccessCritical Fields of the "Heavy-Fermion" Superconductor CeCu 2 Si 2
Author(s) -
U. Rauchschwalbe,
W. Lieke,
C.D. Bredl,
F. Steglich,
J. Aarts,
K. M. Martini,
A. C. Mota
Publication year - 1982
Publication title -
physical review letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.688
H-Index - 673
eISSN - 1079-7114
pISSN - 0031-9007
DOI - 10.1103/physrevlett.49.1448
Subject(s) - physics , fermion , superconductivity , heavy fermion , condensed matter physics , particle physics
Measurements are reported of the lower and upper critical fields, Bc1(T) and Bc2(T), of CeCu2Si2. The observed, extremely high values of the slope (−dBc2dT)Tc0 lend strong support to the formation of Cooper pairs by the heavy fermions which exist in the normal state of CeCu2Si2. Characteristic parameters of the system of heavy fermions are derived
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