Journal article
Coupling of magnetic order and charge transport in the candidate Dirac semimetal EuCd2As2
- Abstract:
- We use resonant elastic x-ray scattering to determine the evolution of magnetic order in EuCd 2 As 2 below T N = 9.5 K, as a function of temperature and applied magnetic field. We find an A-type antiferromagnetic structure with in-plane magnetic moments, and observe dramatic magnetoresistive effects associated with field-induced changes in the magnetic structure and domain populations. Our ab initio electronic structure calculations indicate that the Dirac dispersion found in the nonmagnetic Dirac semimetal Cd 3 As 2 is also present in EuCd 2 As 2 , but is gapped for T < T N due to the breaking of C 3 symmetry by the magnetic structure.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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- Files:
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(Preview, Accepted manuscript, pdf, 4.6MB, Terms of use)
-
- Publisher copy:
- 10.1103/PhysRevB.97.214422
Authors
- Publisher:
- American Physical Society
- Journal:
- Physical review B: Condensed matter and materials physics More from this journal
- Volume:
- 97
- Issue:
- 21
- Article number:
- 214422
- Publication date:
- 2018-06-20
- Acceptance date:
- 2018-06-04
- DOI:
- EISSN:
-
1550-235X
- ISSN:
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1098-0121
- Pubs id:
-
pubs:859547
- UUID:
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uuid:eed19404-fc6e-4040-8b59-cf22d6e71998
- Local pid:
-
pubs:859547
- Source identifiers:
-
859547
- Deposit date:
-
2018-06-26
Terms of use
- Copyright holder:
- © 2018 American Physical Society
- Copyright date:
- 2018
- Notes:
- This is the author accepted manuscript following peer review version of the article. The final version is available online from American Physical Society at: 10.1103/PhysRevB.97.214422
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