Large magnetoresistance and Fermi surface topology of PrSb

Article

关键词: BERRYS PHASE;    MAGNETOOPTICAL PROPERTIES;    GIANT MAGNETORESISTANCE;    ULTRAHIGH MOBILITY;    DIRAC SEMIMETAL;    WEYL FERMIONS;    MAGNETIZATION;   

DOI  :  10.1103/PhysRevB.96.125122

来源: SCIE

【 摘 要 】

We report magnetotransport measurements of PrSb in high magnetic fields. Our results show that PrSb exhibits large magnetoresistance at lowtemperatures. Meanwhile angle-dependent magnetoresistance measurements were used to probe the Fermi surface via Shubnikov-de Haas oscillations. We found that the angular dependence of the oscillation frequency of the a branch can be explained well by a model for a two-dimensional-like Fermi surface, whereas the effective mass of this branch as a function of angle shows a fourfold signature. The evolution of the Fermi surface with increasing magnetic field also was studied up to 32 T. A continuous increase in the oscillation frequency up to 14 T is observed before it becomes constant at higher fields. Meanwhile our analysis of the residual Landau index from the high-field data reveals a zero Berry phase and therefore trivial topology of the Fermi surface.

【 授权许可】

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