Pseudogap and charge density waves in two dimensions.

  title={Pseudogap and charge density waves in two dimensions.},
  author={Sergey V. Borisenko and Alexander A. Kordyuk and Alexander N. Yaresko and Volodymyr B. Zabolotnyy and Dmytro S Inosov and Roman Schuster and Bernd B{\"u}chner and Ramona Weber and Rolf Follath and Luc Patthey and Helmuth Berger},
  journal={Physical review letters},
  volume={100 19},
Using angle-resolved photoemission spectroscopy we demonstrate that a normal-state pseudogap exists above T(N-IC) in one of the most studied two-dimensional charge-density wave (CDW) dichalcogenides 2H-TaSe(2). 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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