Coupling of magnetic order and charge transport in the candidate Dirac semimetal EuCd2As2
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 effe...
| Main Authors: | , , , , , , , , , |
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| Format: | Journal article |
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American Physical Society
2018
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| _version_ | 1797102652189835264 |
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| author | Rahn, M Soh, J Francoual, S Veiga, L Strempfer, J Mardegan, J Yan, D Guo, Y Shi, Y Boothroyd, A |
| author_facet | Rahn, M Soh, J Francoual, S Veiga, L Strempfer, J Mardegan, J Yan, D Guo, Y Shi, Y Boothroyd, A |
| author_sort | Rahn, M |
| collection | OXFORD |
| description | 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. |
| first_indexed | 2024-03-07T06:08:59Z |
| format | Journal article |
| id | oxford-uuid:eed19404-fc6e-4040-8b59-cf22d6e71998 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T06:08:59Z |
| publishDate | 2018 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:eed19404-fc6e-4040-8b59-cf22d6e719982022-03-27T11:35:44ZCoupling of magnetic order and charge transport in the candidate Dirac semimetal EuCd2As2Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:eed19404-fc6e-4040-8b59-cf22d6e71998Symplectic Elements at OxfordAmerican Physical Society2018Rahn, MSoh, JFrancoual, SVeiga, LStrempfer, JMardegan, JYan, DGuo, YShi, YBoothroyd, AWe 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. |
| spellingShingle | Rahn, M Soh, J Francoual, S Veiga, L Strempfer, J Mardegan, J Yan, D Guo, Y Shi, Y Boothroyd, A Coupling of magnetic order and charge transport in the candidate Dirac semimetal EuCd2As2 |
| title | Coupling of magnetic order and charge transport in the candidate Dirac semimetal EuCd2As2 |
| title_full | Coupling of magnetic order and charge transport in the candidate Dirac semimetal EuCd2As2 |
| title_fullStr | Coupling of magnetic order and charge transport in the candidate Dirac semimetal EuCd2As2 |
| title_full_unstemmed | Coupling of magnetic order and charge transport in the candidate Dirac semimetal EuCd2As2 |
| title_short | Coupling of magnetic order and charge transport in the candidate Dirac semimetal EuCd2As2 |
| title_sort | coupling of magnetic order and charge transport in the candidate dirac semimetal eucd2as2 |
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