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Anomalous de Haas-van Alphen oscillations in CeCoIn5.

Authors :
McCollam A
Julian SR
Rourke PM
Aoki D
Flouquet J
Source :
Physical review letters [Phys Rev Lett] 2005 May 13; Vol. 94 (18), pp. 186401. Date of Electronic Publication: 2005 May 09.
Publication Year :
2005

Abstract

We present de Haas-van Alphen oscillation measurements showing a strong spin dependence of the quasiparticle mass enhancement in the heavy fermion superconductor CeCoIn5 at high magnetic fields. There is evidence that the Fermi-liquid temperature dependence of the oscillations, embodied in the Lifshitz-Kosevich equation, is breaking down on the most strongly renormalized Fermi surface sheets.

Details

Language :
English
ISSN :
0031-9007
Volume :
94
Issue :
18
Database :
MEDLINE
Journal :
Physical review letters
Publication Type :
Academic Journal
Accession number :
15904385
Full Text :
https://doi.org/10.1103/PhysRevLett.94.186401