Next Article in Journal
Effectiveness of Surface Treatment with Amine Plasma for Improving the Biocompatibility of Maxillofacial Plates
Previous Article in Journal
A Different Approach to Estimate Temperature-Dependent Thermal Properties of Metallic Materials
Previous Article in Special Issue
Thermal and Electronic Transport Properties of the Half-Heusler Phase ScNiSb
Open AccessArticle

Are AuPdTM (T = Sc, Y and M = Al, Ga, In), Heusler Compounds Superconductors without Inversion Symmetry?

1
Max Planck Institute for Chemical Physics of Solids, 01187 Dresden, Germany
2
Johannes Gutenberg—Universität, Institut für Analytische Chemie und Anorganische Chemie, 55122 Mainz, Germany
*
Author to whom correspondence should be addressed.
Materials 2019, 12(16), 2580; https://doi.org/10.3390/ma12162580
Received: 22 July 2019 / Revised: 6 August 2019 / Accepted: 7 August 2019 / Published: 13 August 2019
(This article belongs to the Special Issue Heusler and Half-Heusler Compounds)
  |  
PDF [4678 KB, uploaded 13 August 2019]
  |  

Abstract

Heusler compounds with 2:1:1 stoichiometry either have a centrosymmetric Cu 2 MnAl structure or an Li 2 AgSb 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. View Full-Text
Keywords: Heusler compounds; superconductivity; electronic structure; non-centrosymmetric Heusler compounds; superconductivity; electronic structure; non-centrosymmetric
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Supplementary material

SciFeed

Share & Cite This Article

MDPI and ACS Style

Kautzsch, L.; Mende, F.; Fecher, G.H.; Winterlik, J.; Felser, C. Are AuPdTM (T = Sc, Y and M = Al, Ga, In), Heusler Compounds Superconductors without Inversion Symmetry? Materials 2019, 12, 2580.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top