Evolution of the Electronic Structure of 1T-CuxTiSe2

Details Evolution of the Electronic Structure of 1T-CuxTiSe2 Evolution of the Electronic Structure of 1T-CuxTiSe2

2006-12-04

arxiv.org/abs/cond-mat/0612091v3

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.99.146401

The electronic structure of a new charge-density-wave/ superconductor system, 1T-CuxTiSe2, has been studied by photoemission spectroscopy. A correlated semiconductor band structure is revealed for the undoped case. With Cu doping, the charge density wave is suppressed by the raising of the chemical potential, while the superconductivity is enhanced by the enhancement of the density of states. Moreover, the strong scattering at high doping might be responsible for the suppression of superconductivity in that regime.

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