Superconductivity in High-Entropy Antimonide M1–xPtxSb (M = Equimolar Ru, Rh, Pd, and Ir)
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The high-entropy concept was applied to the synthesis of transition-metal antimonides, M 1– x Pt x Sb (M = equimolar Ru, Rh, Pd, and Ir). High-entropy antimonide samples crystallized in a pseudo-hexagonal NiAs-type crystal structure with a P 6 3 / mmc space group were successfully synthesized through a conventional solid-state reaction and subsequent quenching. A detailed investigation of the composition and equilibration conditions confirmed the reversible phase transition between a multiphase state at low temperature and an entropy-driven single-phase solid solution at high temperatures. Electrical resistivity, magnetization, and heat capacity measurements of single-phase M 1– x Pt x Sb ( x = 0.2) samples revealed a bulk superconducting transition at 2.15(2) K. This study demonstrates that the high-entropy concept provides numerous opportunities for the discovery of new functional materials such as superconductors.
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High-entropy antimonide M1-xPtxSb (M = equimolar Ir, Pd, Rh, and Ru) compounds crystallized in pseudohexagonal NiAs-type structures with the space group P63/mmc have been prepared via a conventional solid-state reaction followed by quenching.
“High-entropy antimonide M 1x Pt x Sb ( M = equimolar Ir, Pd, Rh, and Ru) compounds crystallized in pseudohexagonal NiAs-type structures with the space group P63/mmc have been prepared via a conventional solidstate reaction followed by quenching 60 .”
From Recent advances in high-entropy superconductors (2024) · cites this paper as [60]
Bulk superconductivity at Tc = 2.15 K was discovered for the compound with x = 0.2.
“Bulk superconductivity at T c = 2.15 K was discovered for the compound with x = 0.2.”
From Recent advances in high-entropy superconductors (2024) · cites this paper as [60]
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- Authors
- Hirai, D., Uematsu, N., Saitoh, K., Katayama, N., & Takenaka, K.
- Affiliations
- Nagoya University (JP)
- Institute of Materials and Systems for Sustainability, Nagoya University (JP)
- Corresponding author
- Hirai, Daigorou
- Venue
- Inorganic Chemistry
- Publisher
- American Chemical Society (ACS)
- Published
- 2023-08-21
- Volume
- 62
- Issue
- 35
- Pages
- 14207-14215
- ISSN
- 0020-1669 (ISSN-L)
- 1520-510X
- OpenAlex
- W4386019236
- Cited by
- 9
- References
- 43
- Citations by year
- 2026: 1 · 2025: 4 · 2024: 4
- FWCI
- 0.89
- Type
- journal article
- Language
- en
- Open access
- Licence
- Locations
- Inorganic Chemistry (publishedVersion)
- PubMed (publishedVersion)
- Institutional Repositories DataBase (IRDB) (acceptedVersion)
- arXiv (Cornell University) (submittedVersion)
- Nagoya University Repository (NAGOYA Repository) (submittedVersion, cc-by-nc-nd)
- arXiv (Cornell University) (cc-by)
- Funders
- Japan Society for the Promotion of Science (JP20H01858, JP22H04462)
- Topics
- Physical Sciences › Engineering › Mechanical Engineering › High Entropy Alloys Studies
- Physical Sciences › Physics and Astronomy › Condensed Matter Physics › Physics of Superconductivity and Magnetism
- Physical Sciences › Chemistry › Inorganic Chemistry › Inorganic Chemistry and Materials
- Keywords
- high-entropy alloys, transition metal antimonides, superconductivity, solid solutions, electrical resistivity, magnetization, heat capacity
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