Abstract
Using angle-resolved photoemission spectroscopy we demonstrate that a normal-state pseudogap exists above in one of the most studied two-dimensional charge-density wave (CDW) dichalcogenides . 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.
- Received 10 October 2007
DOI:https://doi.org/10.1103/PhysRevLett.100.196402
©2008 American Physical Society