Pseudogap and Charge Density Waves in Two Dimensions

S. V. Borisenko, A. A. Kordyuk, A. N. Yaresko, V. B. Zabolotnyy, D. S. Inosov, R. Schuster, B. Büchner, R. Weber, R. Follath, L. Patthey, and H. Berger
Phys. Rev. Lett. 100, 196402 – Published 13 May 2008
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Abstract

Using angle-resolved photoemission spectroscopy we demonstrate that a normal-state pseudogap exists above TNIC in one of the most studied two-dimensional charge-density wave (CDW) dichalcogenides 2HTaSe2. The initial formation of the incommensurate CDW is confirmed as being driven by a conventional nesting instability, which is marked by a pseudogap. The magnitude, character, and anisotropy of the 2D-CDW pseudogap bear considerable resemblance to those seen in superconducting cuprates.

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  • Received 10 October 2007

DOI:https://doi.org/10.1103/PhysRevLett.100.196402

©2008 American Physical Society

Authors & Affiliations

S. V. Borisenko1, A. A. Kordyuk1,2, A. N. Yaresko3, V. B. Zabolotnyy1, D. S. Inosov1, R. Schuster1, B. Büchner1, R. Weber4, R. Follath4, L. Patthey5, and H. Berger6

  • 1Leibniz-Institute for Solid State Research, IFW-Dresden, D-01171, Dresden, Germany
  • 2Institute of Metal Physics, 03142 Kyiv, Ukraine
  • 3Max-Planck-Institute for the Physics of Complex Systems, Dresden, Germany
  • 4BESSY, Berlin, Germany
  • 5Swiss Light Source, Paul Scherrer Institut, CH-5234 Villigen, Switzerland
  • 6Institute of Physics of Complex Matter, EPFL, 1015 Lausanne, Switzerland

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Issue

Vol. 100, Iss. 19 — 16 May 2008

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