Quasilinear quantum magnetoresistance in pressure-induced nonsymmorphic superconductor chromium arsenide

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

16 Scopus Citations
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Author(s)

  • Q. Niu
  • K. Y. Yip
  • Z. L. Lim
  • H. Kotegawa
  • E. Matsuoka
  • H. Sugawara
  • H. Tou
  • Y. Yanase
  • Swee K. Goh

Detail(s)

Original languageEnglish
Article number15358
Journal / PublicationNature Communications
Volume8
Early online date5 Jun 2017
Publication statusPublished - 2017
Externally publishedYes

Link(s)

Abstract

In conventional metals, modification of electron trajectories under magnetic field gives rise to a magnetoresistance that varies quadratically at low field, followed by a saturation at high field for closed orbits on the Fermi surface. Deviations from the conventional behaviour, for example, the observation of a linear magnetoresistance, or a non-saturating magnetoresistance, have been attributed to exotic electron scattering mechanisms. Recently, linear magnetoresistance has been observed in many Dirac materials, in which the electron-electron correlation is relatively weak. The strongly correlated helimagnet CrAs undergoes a quantum phase transition to a nonmagnetic superconductor under pressure. Here we observe, near the magnetic instability, a large and non-saturating quasilinear magnetoresistance from the upper critical field to 14 T at low temperatures. We show that the quasilinear magnetoresistance may arise from an intricate interplay between a nontrivial band crossing protected by nonsymmorphic crystal symmetry and strong magnetic fluctuations.

Research Area(s)

Citation Format(s)

Quasilinear quantum magnetoresistance in pressure-induced nonsymmorphic superconductor chromium arsenide. / Niu, Q.; Yu, W. C.; Yip, K. Y.; Lim, Z. L.; Kotegawa, H.; Matsuoka, E.; Sugawara, H.; Tou, H.; Yanase, Y.; Goh, Swee K.

In: Nature Communications, Vol. 8, 15358, 2017.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

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