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Fermi surface, charge-density-wave gap, and kinks in 2HTaSe2

K. Rossnagel, Eli Rotenberg, H. Koh, N. V. Smith, and L. Kipp
Phys. Rev. B 72, 121103(R) – Published 16 September 2005

Abstract

The Fermi surface of the layered charge-density-wave compound 2HTaSe2 is measured by angle-resolved photoemission as a function of temperature. A surprising Fermi-surface topology and a Fermi-surface branch-dependent charge-density-wave gap are found. In the charge-density-wave state band hybridization effects are strong and responsible for kinks in the band dispersions at relatively high binding energy. The implications of the results on the charge-density-wave mechanism are discussed.

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  • Received 30 June 2005

DOI:https://doi.org/10.1103/PhysRevB.72.121103

©2005 American Physical Society

Authors & Affiliations

K. Rossnagel1,2, Eli Rotenberg2, H. Koh2, N. V. Smith2, and L. Kipp1

  • 1Institut für Experimentelle und Angewandte Physik, Universität Kiel, D–24098 Kiel, Germany
  • 2Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA

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Issue

Vol. 72, Iss. 12 — 15 September 2005

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