Die u:cris Detailansicht:
Superconductivity in Ternary Mg<sub>4</sub>Pd<sub>7</sub>As<sub>6</sub>
- Autor(en)
- Hanna Świątek, Sylwia Gutowska, Michał J. Winiarski, Bartlomiej Wiendlocha, Tomasz Klimczuk
- Abstrakt
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 (λ = 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 λ = 0.76 agrees very well with the experimental finding, which confirms the conventional pairing mechanism in Mg4Pd7As6.
- Organisation(en)
- Computergestützte Materialphysik
- Externe Organisation(en)
- Gdańsk University of Technology, AGH University of Science and Technology
- Journal
- Advanced Electronic Materials
- Anzahl der Seiten
- 12
- ISSN
- 2199-160X
- DOI
- https://doi.org/10.1002/aelm.202400284
- Publikationsdatum
- 11-2024
- Peer-reviewed
- Ja
- ÖFOS 2012
- 103033 Supraleitung, 103018 Materialphysik
- Schlagwörter
- ASJC Scopus Sachgebiete
- Electronic, Optical and Magnetic Materials
- Link zum Portal
- https://ucrisportal.univie.ac.at/de/publications/397f5dbe-f932-403c-a5ea-85ee25e4421c