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arXiv · 1707.04162

Extremely large magnetoresistance and Fermi surface topology of PrSb

F. Wu·C. Y. Guo·M. Smidman·J. L. Zhang·H. Q. Yuan
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Abstract

We report magnetotransport measurements of PrSb in high magnetic fields. Our results show that PrSb exhibits extremely large magnetoresistance(XMR) at low temperatures. Meanwhile angle-dependent magnetoresistance measurements were used to probe the Fermi surface via Shubnikov-de Haas (SdH) oscillations. The angular dependence of the frequencies of the $α$-branch indicate a two-dimensional character for this Fermi surface sheet, while the effective mass of this branch as a function of angle shows a four-fold signature. The evolution of the Fermi surface with field was also studied up to 32~T. An enlargement of the Fermi surface up to 14~T is observed, before the oscillation frequencies become 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.

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F. Wu, C. Y. Guo, M. Smidman, J. L. Zhang, H. Q. Yuan. 2017-07-13. Extremely large magnetoresistance and Fermi surface topology of PrSb. https://doi.org/10.1103/physrevb.96.125122

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