Abstract
The band structure of the new perovskite-like MgCNi3 superconductor is studied by the self-consistent FP-LMTO method. The superconducting properties of MgCNi3 are associated with the occurrence of an intense peak in the density of Ni3d states at the Fermi level. The absence of superconductivity for nonstoichiometric MgC1−x Ni3 compositions is caused by the transition of the system to a magnetic state. The possibilities of finding superconductivity for ScBNi3, InBNi3, MgCCo3, and MgCCu3 isostructural with MgCNi3 are discussed.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
J. Nagamatsu, N. Nakagawa, T. Muranaka, et al., Nature 410, 63 (2001).
N. I. Medvedeva, Yu. E. Medvedeva, A. L. Ivanovskii, et al., Pis’ma Zh. Éksp. Teor. Fiz. 73, 378 (2001) [JETP Lett. 73, 336 (2001)].
V. A. Gasparov, N. S. Sidorov, I. I. Zver’kova, et al., JETP Lett. 73, 532 (2001).
D. Kaczorowski, J. Klamut, and A. Zaleski, cond-mat/0104479 (2001).
G. K. Strukova, V. F. Degtyareva, D. V. Shivkun, et al., cond-mat/0105293 (2001).
D. Young, P. Adams, J. Chan, et al., cond-mat/0104063 (2001).
T. He, Q. Huang, A. P. Ramirez, et al., cond-mat/0103296 (2001).
A. Taraphder, R. Pandit, H. R. Krishnamurthy, and T. V. Ramakrishnan, Int. J. Mod. Phys. B 10, 863 (1996).
A. L. Ivanovskii, Usp. Khim. 64, 499 (1995).
A. L. Ivanovskii, Usp. Khim. 67, 493 (1998).
S. Y. Li, R. Fan, X. H. Chen, et al., cond-mat/0104554 (2001).
Z. Q. Mao, M. M. Rosario, R. Nelson, et al., cond-mat/0105280 (2001).
M. A. Hayward, M. K. Haas, T. He, et al., cond-mat/0104541 (2001).
Z. A. Ren, G. C. Che, S. L. Jia, et al., cond-mat/0105366 (2001).
M. Methfessel and M. Scheffler, Physica B (Amsterdam) 172, 175 (1991).
S. Y. Savrasov, Phys. Rev. B 54, 16470 (1996).
S. H. Vosko, L. Wilk, and M. Nusair, Can. J. Phys. 58, 1200 (1980).
Q. Huang, T. He, K. A. Regan, et al., cond-mat/0105240 (2001).
J. D. Singh and I. I. Mazin, cond-mat/0105577 (2001).
Yu. B. Kuz’ma, Crystal Chemistry of Borides (Vishcha Shkola, Lvov, 1983).
Author information
Authors and Affiliations
Additional information
__________
Translated from Pis’ma v Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Fiziki, Vol. 74, No. 2, 2001, pp. 127–132.
Original Russian Text Copyright © 2001 by Shein, Ivanovski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\), Medvedeva.
Rights and permissions
About this article
Cite this article
Shein, I.R., Ivanovskii, A.L. & Medvedeva, N.I. Electronic structure of the new MgCNi3 superconductor and related intermetallic compounds. Jetp Lett. 74, 122–127 (2001). https://doi.org/10.1134/1.1405900
Received:
Issue Date:
DOI: https://doi.org/10.1134/1.1405900