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  Are AuPdTM (T = Sc, Y and M = Al, Ga, In), Heusler compounds superconductors without inversion symmetry?

Kautzsch, L., Mende, F., Fecher, G. H., Winterlik, J., & Felser, C. (2019). Are AuPdTM (T = Sc, Y and M = Al, Ga, In), Heusler compounds superconductors without inversion symmetry? Materials, 12(16): 2580, pp. 1-15. doi:10.3390/ma12162580.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0004-8CBD-A Version Permalink: http://hdl.handle.net/21.11116/0000-0004-8CC0-5
Genre: Journal Article

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 Creators:
Kautzsch, Linus1, Author              
Mende, Felix1, Author              
Fecher, Gerhard H.2, Author              
Winterlik, Jürgen3, Author
Felser, Claudia4, Author              
Affiliations:
1Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
2Gerhard Fecher, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863431              
3External Organizations, ou_persistent22              
4Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              

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 Abstract: Heusler compounds with 2:1:1 stoichiometry either have a centrosymmetric Cu2MnAl structure or an Li2AgSb structure without a centre of inversion. The centrosymmetry is always lost in quaternary Heusler compounds with 1:1:1:1 stoichiometry and LiMgPdSn structure. This presents the possibility of realizing non-centrosymmetric superconductors in the family of Heusler compounds. The objective of this study is to search for and investigate such quaternary derivatives of Heusler compounds, particularly with respect to superconductivity. Several compounds were identified by carrying out calculations from first principles and superconductivity was observed in experiments conducted on AuPdScAl and AuPtScIn at the critical temperatures of 3.0 and 0.96 K, respectively. All investigated compounds had a valence electron count of 27, which is also the case in centrosymmetric Heusler superconductors. © 2019 by the authors.

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Language(s): eng - English
 Dates: 2019-08-132019-08-13
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.3390/ma12162580
 Degree: -

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Title: Materials
  Abbreviation : Materials
Source Genre: Journal
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Publ. Info: Basel : MDPI
Pages: - Volume / Issue: 12 (16) Sequence Number: 2580 Start / End Page: 1 - 15 Identifier: ISSN: 1996-1944
CoNE: https://pure.mpg.de/cone/journals/resource/1996-1944