Research ArticleOpen AccessGoogle Scholar indexed
On the Superconductivity in High-Entropy Alloy (NbTa)<sub>1-X</sub>(HfZrTi)<sub>X</sub>
Government of India, New Delhi, India
- 1 Government of India, New Delhi, India
Journal of Modern Physics·Volume 14 (2023)·Pages 445–449·Published 14 March 2023·DOI10.4236/jmp.2023.144025
Copy link · social · email
Abstract
The superconductivity in (NbTa) 1-X (HfZrTi) X high-entropy alloy is analyzed using the theory of strong-coupled superconductor. It is concluded that (NbTa) 1-X (HfZrTi) X is a strong coupled superconductor. The variation in the superconducting transition temperature from 7.9 K to 4.6 K as x increases from 0.2 to 0.84 arises because of the decrease in electronic band width due to localization and broadening of the band. It is suggested that the decrease in electronic band width is due to crystalline randomness which gives rise to the mobility edge.
KeywordsHigh-Entropy AlloysDisordered MetalsStrong-Coupled SuperconductivityLocalizationCocktail Effect
- Ye, Y.F., et al. (2016) Materials Today, 19, 349. https://doi.org/10.1016/j.mattod.2015.11.026
- Chen, S., Tong, Y. and Liaw, P.K. (2018) Entropy, 20, 937. https://doi.org/10.3390/e20120937
- Song, H., et al. (2017) Physical Review Materials, 1, 23404.
- Koželj, P., et al. (2014) Physical Review Letters, 113, Article ID: 107001. https://doi.org/10.1103/PhysRevLett.113.107001
- von Rohr, F., et al. (2016) Proceedings of the National Academy of Sciences of the United States of America, 113, E7144-E7150.
- Wu, K.Y., Chen, S.K. and Wu, J.M. (2018) Natural Science, 10, 110-124. https://doi.org/10.4236/ns.2018.103012
- Ishizu, N. and Kitagawa, J. (2019) Results in Physics, 13, Article ID: 102275. https://doi.org/10.1016/j.rinp.2019.102275
- Kittel, C. (1976) Introduction to Solid State Physics. 5th Edition, Wiley Eastern Limited, New Delhi.
- Lynn, J.W. (1991) High Temperature Superconductivity. World Publishing Corporation, Beijing, Ch. 9, 303.
- Ota, S.B. (1987) Physical Review B, 35, 8730. https://doi.org/10.1103/PhysRevB.35.8730
- Thouless, D.J. (1974) Physics Reports, 13, 93-142. https://doi.org/10.1016/0370-1573(74)90029-5
- Liu, Z.H. and Shang, J.X. (2011) Rare Metals, 30, 354-358. https://doi.org/10.1007/s12598-011-0302-9
- Skipetrov, S.E. and Sokolov, I.M. (2018) Physical Review B, 98, 64207. https://doi.org/10.1103/PhysRevB.98.064207
- Morel, P. and Anderson, P.W. (1962) Physical Review, 125, 1263. https://doi.org/10.1103/PhysRev.125.1263
- McMillan, W.L. (1968) Physical Review, 167, 331. https://doi.org/10.1103/PhysRev.167.331
- Sundqvist, B. (2022) Journal of Physics and Chemistry of Solids, 165, Article ID: 110686. https://doi.org/10.1016/j.jpcs.2022.110686