Field dependence of the thermopower of CeNiSn

Details Field dependence of the thermopower of CeNiSn Field dependence of the thermopower of CeNiSn

2008-07-04

arxiv.org/abs/0807.0737v1

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, accepted for Journal of Physics: Conference Series, proceedings of LT 25

Scientific paper

10.1088/1742-6596/150/4/042096

Previously measured thermopower data of CeNiSn exhibit a significant sample dependence and non-monotonous behavior in magnetic fields. In this paper we demonstrate that the measured thermopower S(T) may contain a contribution from the huge Nernst coefficient of the compound, even in moderate fields of 2 T. A correction for this effect allows to determine the intrinsic field dependence of S(T). The observed thermopower behavior can be understood from Zeeman splitting of a V-shaped pseudogap in magnetic fields.

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