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Article
Electron-Hole Coupling and the Charge Density Wave Transition in TiSe2
Physical Review Letters (2002)
  • Tim Kidd, University of Northern Iowa
  • T. Miller, University of Illinois at Urbana-Champaign
  • M.Y. Chou, Georgia Institute of Technology
  • T.C. Chaing, University of Illinois at Urbana-Champaign
Abstract
Angle-resolved photoemission is employed to measure the band structure of TiSe2 in order to clarify the nature of the ( 2×2×2) 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.
Disciplines
Publication Date
May 17, 2002
DOI
http://dx.doi.org/10.1103/PhysRevLett.88.226402
Citation Information
Tim Kidd, T. Miller, M.Y. Chou and T.C. Chaing. "Electron-Hole Coupling and the Charge Density Wave Transition in TiSe2" Physical Review Letters Vol. 88 Iss. 22 (2002)
Available at: http://works.bepress.com/tim-kidd/32/