Nonsaturating large magnetoresistance in the high carrier density nonsymmorphic metal CrP

Q. Niu, W. C. Yu, E. I. Paredes Aulestia, Y. J. Hu, Kwing To Lai, H. Kotegawa, E. Matsuoka, H. Sugawara, H. Tou, D. Sun, F. F. Balakirev, Y. Yanase, and Swee K. Goh
Phys. Rev. B 99, 125126 – Published 18 March 2019
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Abstract

The band structure of high carrier density metal CrP features an interesting crossing at the Y point of the Brillouin zone. The crossing, which is protected by the nonsymmorphic symmetry of the space group, results in a hybrid, semi-Dirac-like energy-momentum dispersion relation near Y. The linear energy-momentum dispersion relation along YΓ is reminiscent of the observed band structure in several semimetallic extremely large magnetoresistance (XMR) materials. We have measured the transverse magnetoresistance of CrP up to 14 T at temperatures as low as 16 mK. Our data reveal a nonsaturating, quadratic magnetoresistance as well as the behavior of the so-called “turn-on” temperature in the temperature dependence of resistivity. Despite the difference in the magnitude of the magnetoresistance and the fact that CrP is not a semimetal, these features are qualitatively similar to the observations reported for XMR materials. Thus, the high-field electrical transport studies of CrP offer the prospect of identifying the possible origin of the nonsaturating, quadratic magnetoresistance observed in a wide range of metals.

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  • Received 9 January 2019
  • Revised 18 February 2019

DOI:https://doi.org/10.1103/PhysRevB.99.125126

©2019 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Q. Niu1,*, W. C. Yu1, E. I. Paredes Aulestia1, Y. J. Hu1, Kwing To Lai1, H. Kotegawa2, E. Matsuoka2, H. Sugawara2, H. Tou2, D. Sun3, F. F. Balakirev3, Y. Yanase4, and Swee K. Goh1,†

  • 1Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
  • 2Department of Physics, Kobe University, Kobe 658-8530, Japan
  • 3National High Magnetic Field Laboratory, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
  • 4Department of Physics, Kyoto University, Kyoto 606-8502, Japan

  • *Present address: University Grenoble Alpes, CEA, IRIG-PHELIQS, F-38000 Grenoble, France.
  • skgoh@cuhk.edu.hk

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Issue

Vol. 99, Iss. 12 — 15 March 2019

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