Band structure of the superconducting MgB2 compound and modeling of related ternary systems

N. I. Medvedeva; J. E. Medvedeva; A. L. Ivanovskiǐ; V. G. Zubkov; Arthur J Freeman

doi:10.1134/1.1378114

Band structure of the superconducting MgB₂ compound and modeling of related ternary systems

N. I. Medvedeva, J. E. Medvedeva, A. L. Ivanovskiǐ, V. G. Zubkov, Arthur J Freeman

Northwestern University

Research output: Contribution to journal › Article

18 Citations (Scopus)

Abstract

Band structure of a novel superconductor - magnesium diboride - is studied by the self-consistent FP-LMTO method. Density of states near the Fermi level of MgB₂ and its electronic properties are governed by the metal-like boron 2p orbitals in the planar network of boron atoms. The modification of the band structure of MgB₂ upon doping the boron (with Be, C, N, and O substitutional impurities) and the magnesium (with Be, Ca, Li, and Na substitutional impurities) sublattices or upon the introduction of structural vacancies (boron nonstoichiomety) is analyzed. The electronic structures of MgB₂ and hypothetical CaB₂ are also studied as functions of pressure.

Original language	English
Pages (from-to)	336-340
Number of pages	5
Journal	JETP Letters
Volume	73
Issue number	7
DOIs	https://doi.org/10.1134/1.1378114
Publication status	Published - Apr 10 2001

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ternary systems

boron

magnesium

impurities

sublattices

electronic structure

orbitals

electronics

metals

atoms

ASJC Scopus subject areas

Physics and Astronomy(all)

Cite this

Medvedeva, N. I., Medvedeva, J. E., Ivanovskiǐ, A. L., Zubkov, V. G., & Freeman, A. J. (2001). Band structure of the superconducting MgB₂ compound and modeling of related ternary systems. JETP Letters, 73(7), 336-340. https://doi.org/10.1134/1.1378114

Band structure of the superconducting MgB₂ compound and modeling of related ternary systems. / Medvedeva, N. I.; Medvedeva, J. E.; Ivanovskiǐ, A. L.; Zubkov, V. G.; Freeman, Arthur J.

In: JETP Letters, Vol. 73, No. 7, 10.04.2001, p. 336-340.

Research output: Contribution to journal › Article

Medvedeva, NI, Medvedeva, JE, Ivanovskiǐ, AL, Zubkov, VG & Freeman, AJ 2001, 'Band structure of the superconducting MgB₂ compound and modeling of related ternary systems', JETP Letters, vol. 73, no. 7, pp. 336-340. https://doi.org/10.1134/1.1378114

Medvedeva NI, Medvedeva JE, Ivanovskiǐ AL, Zubkov VG, Freeman AJ. Band structure of the superconducting MgB₂ compound and modeling of related ternary systems. JETP Letters. 2001 Apr 10;73(7):336-340. https://doi.org/10.1134/1.1378114

Medvedeva, N. I. ; Medvedeva, J. E. ; Ivanovskiǐ, A. L. ; Zubkov, V. G. ; Freeman, Arthur J. / Band structure of the superconducting MgB₂ compound and modeling of related ternary systems. In: JETP Letters. 2001 ; Vol. 73, No. 7. pp. 336-340.

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