Pseudogap and charge density waves in two dimensions.
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.
Borisenko
S V
SV
Leibniz-Institute for Solid State Research, IFW-Dresden, Dresden, Germany.
Kordyuk
A A
AA
Yaresko
A N
AN
Zabolotnyy
V B
VB
Inosov
D S
DS
Schuster
R
R
Büchner
B
B
Weber
R
R
Follath
R
R
Patthey
L
L
Berger
H
H