First-principles prediction of spin-polarized multiple dirac rings in manganese fluoride
Article
Article Title | First-principles prediction of spin-polarized multiple dirac rings in manganese fluoride |
---|---|
ERA Journal ID | 1019 |
Article Category | Article |
Authors | Jiao, Yalong (Author), Ma, Fengxian (Author), Zhang, Chunmei (Author), Bell, John (Author), Sanvito, Stefano (Author) and Du, Aijun (Author) |
Journal Title | Physical Review Letters |
Journal Citation | 119 (1) |
Article Number | 016403 |
Number of Pages | 6 |
Year | 2017 |
Place of Publication | United States |
ISSN | 0031-9007 |
1079-7114 | |
1092-0145 | |
Digital Object Identifier (DOI) | https://doi.org/10.1103/PhysRevLett.119.016403 |
Web Address (URL) | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85022211717&doi=10.1103%2fPhysRevLett.119.016403&partnerID=40&md5=c550480a5b4154009aa63e94c839ad36 |
Abstract | Spin-polarized materials with Dirac features have sparked great scientific interest due to their potential applications in spintronics. But such a type of structure is very rare and none has been fabricated. Here, we investigate the already experimentally synthesized manganese fluoride (MnF3) as a novel spin-polarized Dirac material by using first-principles calculations. MnF3 exhibits multiple Dirac cones in one spin orientation, while it behaves like a large gap semiconductor in the other spin channel. The estimated Fermi velocity for each cone is of the same order of magnitude as that in graphene. The 3D band structure further reveals that MnF3 possesses rings of Dirac nodes in the Brillouin zone. Such a spin-polarized multiple Dirac ring feature is reported for the first time in an experimentally realized material. Moreover, similar band dispersions can be also found in other transition metal fluorides (e.g., CoF3, CrF3, and FeF3). Our results highlight a new interesting single-spin Dirac material with promising applications in spintronics and information technologies. |
Keywords | calculations; fluorine compounds; magnetoelectronics; manganese; transition metal compounds |
ANZSRC Field of Research 2020 | 400499. Chemical engineering not elsewhere classified |
401605. Functional materials | |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | Queensland University of Technology |
Trinity College, Ireland | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q5x32/first-principles-prediction-of-spin-polarized-multiple-dirac-rings-in-manganese-fluoride
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