title: Magnetic-field-induced band-structure change in CeBiPt.
abstract: 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 approximately 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.
authors.affiliation: Institut für Festkörper- und Werkstoffforschung Dresden, D-01171 Dresden, Germany.
authors.forename: N
authors.initials: N
authors.lastname: Kozlova
authors.forename: J
authors.initials: J
authors.lastname: Hagel
authors.forename: M
authors.initials: M
authors.lastname: Doerr
authors.forename: J
authors.initials: J
authors.lastname: Wosnitza
authors.forename: D
authors.initials: D
authors.lastname: Eckert
authors.forename: K-H
authors.initials: KH
authors.lastname: Müller
authors.forename: L
authors.initials: L
authors.lastname: Schultz
authors.forename: I
authors.initials: I
authors.lastname: Opahle
authors.forename: S
authors.initials: S
authors.lastname: Elgazzar
authors.forename: Manuel
authors.initials: M
authors.lastname: Richter
authors.forename: G
authors.initials: G
authors.lastname: Goll
authors.forename: H
authors.initials: H
authors.lastname: von Löhneysen
authors.forename: G
authors.initials: G
authors.lastname: Zwicknagl
authors.forename: T
authors.initials: T
authors.lastname: Yoshino
authors.forename: T
authors.initials: T
authors.lastname: Takabatake