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 |
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Pages (from-to) | 1180-1182 |
Number of pages | 3 |
Journal | Physica B: Condensed Matter |
Volume | 359-361 |
Issue number | SPEC. ISS. |
DOIs | |
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