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Abstract
The synthesis and characterization of a new compound Mg4Pd7As6, which is found to be a superconductor with Tc = 5.45 K is reported. Powder X-ray diffraction confirms the U4Re7Si6 structure (space group Im-3m, no. 229) with the lattice parameter a = 8.2572(1) Å. Magnetization, specific heat, and electrical resistivity measurements indicate that it is a moderate-coupling ( = 0.72) type-II superconductor. The electronic and phonon structures are calculated, highlighting the importance of antibonding Pd–As interactions in determining the properties of this material. The calculated electron–phonon coupling parameter = 0.76 agrees very well with the experimental finding, which confirms the conventional pairing mechanism in Mg4Pd7As6 .
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Authors (5)
-
Sylwia Gutowska
-
Bartłomiej Wiendlocha
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Details
- Category:
- Articles
- Type:
- artykuły w czasopismach dostępnych w wersji elektronicznej [także online]
- Published in:
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Advanced Electronic Materials
ISSN: 2199-160X - Language:
- English
- Publication year:
- 2024
- Bibliographic description:
- Świątek H., Gutowska S., Winiarski M., Wiendlocha B., Klimczuk T., Superconductivity in Ternary Mg4Pd7As6, Advanced Electronic Materials, 2024,10.1002/aelm.202400284
- DOI:
- Digital Object Identifier (open in new tab) 10.1002/aelm.202400284
- Sources of funding:
-
- Free publication
- Verified by:
- Gdańsk University of Technology
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