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

Journal Article · · Physical Review B
 [1];  [2];  [3];  [2];  [4];  [1];  [1]
  1. Nanyang Technological Univ. (Singapore)
  2. Ames Lab. and Iowa State Univ., Ames, IA (United States)
  3. National Institute of Advanced Industrial Science and Technology (AIST), Ibaraki (Japan)
  4. Univ. of California, Santa Cruz, CA (United States)

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. In conclusion, we propose that complex structures at magnetic domain walls may be responsible for the hysteretic MR and may also lead to the AHE.

Research Organization:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
MOE2011-T2-1-108; NRF-NRFI2015-04; AC02-07CH11358; FG02-06ER46319
OSTI ID:
1259551
Alternate ID(s):
OSTI ID: 1252586
Report Number(s):
IS-J-9013; PRBMDO
Journal Information:
Physical Review B, Vol. 93, Issue 17; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 22 works
Citation information provided by
Web of Science

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