Momentum Dependent Spectral Changes Induced by the Charge Density Wave in 2{ital H}-TaSe{sub 2 } and the Implication on the CDW Mechanism
Journal Article
·
· Physical Review Letters
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824 (United States)
- Ames Laboratory, Ames, Iowa 50011 (United States)
- Department of Physics, Simon Fraser University, Burnaby, British Columbia, V5A 1S6 (CANADA)
We report a high energy and high angular resolution angle resolved photoemission study of 2H-TaSe{sub 2} at temperatures both above and below the charge-density-wave (CDW) transition. In the normal state, an extended saddle band very close to the Fermi energy was observed. The CDW-induced energy gap is near zero on a well defined Fermi surface and large in the extended saddle band region. The implication of these results on the CDW mechanism is discussed. {copyright} {ital 1998} {ital The American Physical Society}
- Research Organization:
- Ames National Laboratory
- DOE Contract Number:
- W-7405-ENG-82
- OSTI ID:
- 642464
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 26 Vol. 80; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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