Electron-Hole Coupling and the Charge Density Wave Transition in
Top Cited Papers
- 17 May 2002
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 88 (22), 226402
- https://doi.org/10.1103/physrevlett.88.226402
Abstract
Angle-resolved photoemission is employed to measure the band structure of in order to clarify the nature of the ( ) charge density wave transition. The results show a very small indirect gap in the normal phase transforming into a larger indirect gap at a different location in the Brillouin zone. Fermi surface topology is irrelevant in this case. Instead, electron-hole coupling together with a novel indirect Jahn-Teller effect drives the transition.
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