Anomalous temperature dependence of magnetic quantum oscillations in CeBiPt

Details Anomalous temperature dependence of magnetic quantum oscillations in CeBiPt Anomalous temperature dependence of magnetic quantum oscillations in CeBiPt

2000-03-20

arxiv.org/abs/cond-mat/0003329v1

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 4 figures

Scientific paper

Shubnikov--de Haas (SdH) and Hall-effect measurements of CeBiPt and LaBiPt reveal the presence of simple and very small Fermi surfaces with hole-like charge carriers for both semimetals. In the magnetic material, CeBiPt, we observe a strong temperature dependence of the SdH frequency. This highly unusual effect might be connected with an internal exchange field within the material and a strongly spin-dependent scattering of the charge carriers.

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