Electronic band structures and charge density wave of 2HMX2(M = Nb,Ta,X =S,Se)

Michi To Suzuki; Hisatomo Harima

doi:10.1016/j.physb.2005.01.336

Electronic band structures and charge density wave of 2HMX₂(M = Nb,Ta,X =S,Se)

Michi To Suzuki, Hisatomo Harima

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

We have performed the band structure calculations for the normal phase of 2H-MX2(M=Nb,Ta,X=S,Se) and the 3×3 commensurate CDW (C-CDW) phase of 2H-TaSe2. In 2H-TaSe2 the density of states shows a peak structure near the Fermi level in the normal phase, then becomes largely reduced after formation of the CDW. It allows us to discuss the new mechanism for the CDW instability.

Original language	English
Pages (from-to)	1180-1182
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	359-361
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physb.2005.01.336
Publication status	Published - 2005 Apr 30
Externally published	Yes

Keywords

Charge density wave
Electronic band structure
Transition metal di-chalcogeneides

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1016/j.physb.2005.01.336

Cite this

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abstract = "We have performed the band structure calculations for the normal phase of 2H-MX2(M=Nb,Ta,X=S,Se) and the 3×3 commensurate CDW (C-CDW) phase of 2H-TaSe2. In 2H-TaSe2 the density of states shows a peak structure near the Fermi level in the normal phase, then becomes largely reduced after formation of the CDW. It allows us to discuss the new mechanism for the CDW instability.",

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AU - Suzuki, Michi To

AU - Harima, Hisatomo

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Y1 - 2005/4/30

N2 - We have performed the band structure calculations for the normal phase of 2H-MX2(M=Nb,Ta,X=S,Se) and the 3×3 commensurate CDW (C-CDW) phase of 2H-TaSe2. In 2H-TaSe2 the density of states shows a peak structure near the Fermi level in the normal phase, then becomes largely reduced after formation of the CDW. It allows us to discuss the new mechanism for the CDW instability.

AB - We have performed the band structure calculations for the normal phase of 2H-MX2(M=Nb,Ta,X=S,Se) and the 3×3 commensurate CDW (C-CDW) phase of 2H-TaSe2. In 2H-TaSe2 the density of states shows a peak structure near the Fermi level in the normal phase, then becomes largely reduced after formation of the CDW. It allows us to discuss the new mechanism for the CDW instability.

KW - Charge density wave

KW - Electronic band structure

KW - Transition metal di-chalcogeneides

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