2005/02/11 by N. Kozlova, J. Hagel, M. Doerr +11
Physics and Astronomy · #cond-mat.str-el
paper · pdf · doi:10.1103/physrevlett.95.086403
published as Physical Review Letters 95, 086403 (2005) · 4 pages, 4 figures
arxiv created 2005/02/11 · arxiv updated 2009/12/01
We report on a field-induced change of the electronic band structure of CeBiPt as evidenced by electrical-transport measurements in pulsed magnetic fields. Above ~25 T, the charge-carrier concentration increases nearly 30% with a concomitant disappearance of the Shubnikov-de Haas signal. These features are intimately related to the Ce 4f electrons since for the non-4f compound LaBiPt the Fermi surface remains unaffected. Electronic band-structure calculations point to a 4f-polarization-induced change of the Fermi-surface topology.