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Correct Brillouin zone and electronic structure of BiPd

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Correct_Brillouin_zone_and_electronic_structure_of_BiPd_Phys._Rev._B.pdf (1.151Mb)
Date
15/02/2018
Author
Yaresko, Alexander
Schnyder, Andreas P.
Benia, Hadj M.
Yim, Chi-Ming
Levy, Giorgio
Damascelli, Andrea
Ast, Christian R.
Peets, Darren C.
Wahl, Peter
Funder
EPSRC
Grant ID
EP/I031014/1
Keywords
QC Physics
TK Electrical engineering. Electronics Nuclear engineering
NDAS
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Abstract
A promising route to the realization of Majorana fermions is in noncentrosymmetric superconductors, in which spin-orbit coupling lifts the spin degeneracy of both bulk and surface bands. A detailed assessment of the electronic structure is critical to evaluate their suitability for this through establishing the topological properties of the electronic structure. This requires correct identification of the time-reversal-invariant momenta. One such material is BiPd, a recently rediscovered noncentrosymmetric superconductor which can be grown in large, high-quality single crystals and has been studied by several groups using angular resolved photoemission to establish its surface electronic structure. Many of the published electronic structure studies on this material are based on a reciprocal unit cell which is not the actual Brillouin zone of the material. We show here the consequences of this for the electronic structures and show how the inferred topological nature of the material is affected.
Citation
Yaresko , A , Schnyder , A P , Benia , H M , Yim , C-M , Levy , G , Damascelli , A , Ast , C R , Peets , D C & Wahl , P 2018 , ' Correct Brillouin zone and electronic structure of BiPd ' , Physical Review. B, Condensed matter and materials physics , vol. 97 , no. 7 , 075108 . https://doi.org/10.1103/PhysRevB.97.075108
Publication
Physical Review. B, Condensed matter and materials physics
Status
Peer reviewed
DOI
https://doi.org/10.1103/PhysRevB.97.075108
ISSN
1098-0121
Type
Journal article
Rights
© 2018, American Physical Society. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1103/PhysRevB.97.075108
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/12589

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