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Hybrid Pairing and Heavy Fermions
Author(s) -
Schuh B.
Publication year - 1985
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221310125
Subject(s) - pairing , fermion , condensed matter physics , physics , superconductivity , zero temperature , phonon , order (exchange) , quantum mechanics , finance , economics
If the d–f exchange interaction is taken as the driving attractive interaction for a non‐phonon hybrid pairing mechanism one gets results of surprising significance for heavy Fermion superconductors: a transition temperature one order of magnitude smaller than the single ion Kondo temperature, a large critical field initial slope, and a huge specific heat jump, whereas the ratio of the gap at zero temperature to kT c has the BCS value 3.53. Except for the relation between T c and the Kondo temperature these statements remain to be true for any other hybrid pairing interaction of the same form.