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  Magnetic and superconducting phase diagram of the half-Heusler topological semimetal HoPdBi

Nikitin, A. M., Pan, Y., Mao, X., Jehee, R., Araizi, G. K., Huang, Y. K., et al. (2015). Magnetic and superconducting phase diagram of the half-Heusler topological semimetal HoPdBi. Journal of Physics: Condensed Matter, 27(27): 275701, pp. 1-7. doi:10.1088/0953-8984/27/27/275701.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0027-F88F-5 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-1CD3-2
Genre: Journal Article

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 Creators:
Nikitin, A. M.1, Author
Pan, Y.1, Author
Mao, X.1, Author
Jehee, R.1, Author
Araizi, G. K.1, Author
Huang, Y. K.1, Author
Paulsen, C.1, Author
Wu, S. C.2, Author              
Yan, B. H.3, Author              
de Visser, A.1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
3Binghai Yan, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863427              

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 Abstract: We report a study of the magnetic and electronic properties of the non-centrosymmetric half-Heusler antiferromagnet HoPdBi (T-N = 2.0 K). Magnetotransport measurements show HoPdBi has a semimetallic behavior with a carrier concentration n= 3.7 x 10(18) cm(-3) extracted from the Shubnikov-de Haas effect. The magnetic phase diagram in the field-temperature plane has been determined by transport, magnetization, and thermal expansion measurements: magnetic order is suppressed at B-M similar to 3.6 T for T -> 0. Superconductivity with T-c similar to 1.9 K is found in the antiferromagnetic phase. Ac-susceptibility measurements provide solid evidence for bulk superconductivity below T-c = 0.75 K with a screening signal close to a volume fraction of 100%. The upper critical field shows an unusual linear temperature variation with B-c2(T -> 0) = 1.1 T. We also report electronic structure calculations that classify HoPdBi as a new topological semimetal, with a non-trivial band inversion of 0.25 eV.

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Language(s): eng - English
 Dates: 2015-06-152015-06-15
 Publication Status: Published in print
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Title: Journal of Physics: Condensed Matter
  Abbreviation : J. Phys.: Condens. Matter
Source Genre: Journal
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Publ. Info: Bristol, UK : IOP Publishing
Pages: - Volume / Issue: 27 (27) Sequence Number: 275701 Start / End Page: 1 - 7 Identifier: ISSN: 0953-8984
CoNE: /journals/resource/954928562478