Evidence for a new magnetic field scale in CeCoIn5

Details Evidence for a new magnetic field scale in CeCoIn5 Evidence for a new magnetic field scale in CeCoIn5

2005-05-31

arxiv.org/abs/cond-mat/0505765v1

Physics

Condensed Matter

Strongly Correlated Electrons

submitted to Physical Review Letters

Scientific paper

10.1103/PhysRevLett.96.077207

The Nernst coefficient of CeCoIn5 displays a distinct anomaly at H_K ~ 23 T.
This feature is reminiscent of what is observed at 7.8 T in CeRu2Si2, a
well-established case of metamagnetic transition. New frequencies are observed
in de Haas-van Alphen oscillations when the field exceeds 23 T, which may
indicate a modification of the Fermi surface at this field.

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