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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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Kautzsch, Linus1, Autor           
Mende, Felix1, Autor           
Fecher, Gerhard H.2, Autor           
Winterlik, Jürgen3, Autor
Felser, Claudia4, Autor           
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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 Zusammenfassung: 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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Sprache(n): eng - English
 Datum: 2019-08-132019-08-13
 Publikationsstatus: Erschienen
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 Identifikatoren: DOI: 10.3390/ma12162580
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Titel: Materials
  Kurztitel : Materials
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Basel : MDPI
Seiten: - Band / Heft: 12 (16) Artikelnummer: 2580 Start- / Endseite: 1 - 15 Identifikator: ISSN: 1996-1944
CoNE: https://pure.mpg.de/cone/journals/resource/1996-1944