Hysteretic magnetoresistance and unconventional anomalous Hall effect in the frustrated magnet TmB4

Sai Swaroop Sunku, Tai Kong, Toshimitsu Ito, Paul C. Canfield, B. Sriram Shastry, Pinaki Sengupta, Christos Panagopoulos

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

We study TmB4, a frustrated magnet on the Archimedean Shastry-Sutherland lattice, through magnetization and transport experiments. The lack of anisotropy in resistivity shows that TmB4 is an electronically three-dimensional system. The magnetoresistance (MR) is hysteretic at low temperature even though a corresponding hysteresis in magnetization is absent. The Hall resistivity shows unconventional anomalous Hall effect (AHE) and is linear above saturation despite a large MR. We propose that complex structures at magnetic domain walls may be responsible for the hysteretic MR and may also lead to the AHE.

Original languageEnglish (US)
Article number174408
JournalPhysical Review B
Volume93
Issue number17
DOIs
StatePublished - May 11 2016
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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