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  Observation of a two-dimensional Fermi surface and Dirac dispersion in YbMnSb2

Kealhofer, R., Jang, S., Griffin, S. M., John, C., Benavides, K. A., Doyle, S., et al. (2018). Observation of a two-dimensional Fermi surface and Dirac dispersion in YbMnSb2. Physical Review B, 97(4): 045109. doi:10.1103/PhysRevB.97.045109.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000B-7926-3 Version Permalink: https://hdl.handle.net/21.11116/0000-000B-7927-2
Genre: Journal Article

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https://doi.org/10.1103/PhysRevB.97.045109 (Publisher version)
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 Creators:
Kealhofer, Robert1, Author
Jang, Sooyoung1, Author
Griffin, Sinead M.1, Author
John, Caolan1, Author
Benavides, Katherine A.1, Author
Doyle, Spencer1, Author
Helm, T.1, Author
Moll, Philip J. W.1, Author
Neaton, Jeffrey B.1, Author
Chan, Julia Y.1, Author
Denlinger, J. D.1, Author
Analytis, James G.1, Author
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1external, ou_persistent22              

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 Abstract: We present the crystal structure, electronic structure, and transport properties of the material YbMnSb2, a candidate system for the investigation of Dirac physics in the presence of magnetic order. Our measurements reveal that this system is a low-carrier-density semimetal with a two-dimensional Fermi surface arising from a Dirac dispersion, consistent with the predictions of density-functional-theory calculations of the antiferromagnetic system. The low temperature resistivity is very large, suggesting that scattering in this system is highly efficient at dissipating momentum despite its Dirac-like nature.

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Language(s): eng - English
 Dates: 2018
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1103/PhysRevB.97.045109
 Degree: -

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Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 97 (4) Sequence Number: 045109 Start / End Page: - Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008