Pseudogap and charge density waves in two dimensions
- Borisenko, S. V.
- Kordyuk, A. A.
- Yaresko, A. N.
- Zabolotnyy, V. B.
- Inosov, D. S.
- Schuster, R.
- Buechner, B.
- Weber, R.
- Follath, R.
- Patthey, L.
- Berger, H.
Publication date
November 2010
DOI Publisher
American Physical Society (APS)Abstract
Using angle-resolved photoemission spectroscopy we demonstrate that a normal-state pseudogap exists above TN-IC in one of the most studied two-dimensional charge-density wave (CDW) dichalcogenides 2H-TaSe2. 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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