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Field-induced magnetic phase transitions and the resultant giant anomalous Hall effect in the antiferromagnetic half-Heusler compound DyPtBi

Journal Article · · Physical Review B
 [1];  [2];  [3];  [4];  [4];  [2];  [5]
  1. Michigan State Univ., East Lansing, MI (United States); Michigan State University
  2. Pennsylvania State Univ., University Park, PA (United States)
  3. National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  5. Michigan State Univ., East Lansing, MI (United States)
We report field-induced magnetic phase transitions and transport properties of antiferromagnetic DyPtBi. We show that DyPtBi hosts a delicate balance between two different magnetic ground states, which can be controlled by a moderate magnetic field. Furthermore, it exhibits giant anomalous Hall effect (σA = 1540 Ω–1 cm–1, θAHE = 24%) in a field-induced type-I spin structure, presumably attributed to the enhanced Berry curvature associated with avoided band crossings near the Fermi energy and/or nonzero spin chirality. As a result, the latter mechanism points DyPtBi towards a rare potential realization of anomalous Hall effect in an antiferromagnet with face-centered-cubic lattice that was proposed.
Research Organization:
Michigan State Univ., East Lansing, MI (United States)
Sponsoring Organization:
National Science Foundation; USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0019259
OSTI ID:
1737807
Journal Information:
Physical Review B, Journal Name: Physical Review B Journal Issue: 9 Vol. 102; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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