Evolution of the Electronic Structure of 1T-CuxTiSe2

J. F. Zhao; H. W. Ou; G. Wu; B. P. Xie; Y. Zhang; D. W. Shen; J. Wei; L. X. Yang; J. K. Dong; M. Arita; H. Namatame; M. Taniguchi; X. H. Chen; D. L. Feng

doi:10.1103/PhysRevLett.99.146401

Evolution of the Electronic Structure of 1T-CuxTiSe2

Strongly Correlated Electrons 2009-11-11 v3 Superconductivity

Authors: J. F. Zhao , H. W. Ou , G. Wu , B. P. Xie , Y. Zhang , D. W. Shen , J. Wei , L. X. Yang , J. K. Dong , M. Arita , H. Namatame , M. Taniguchi , X. H. Chen , D. L. Feng

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Abstract

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.

Keywords

1T-CuxTiSe2 charge-density-wave superconductivity photoemission spectroscopy electronic structure Cu doping chemical potential

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@article{arxiv.cond-mat/0612091,
  title  = {Evolution of the Electronic Structure of 1T-CuxTiSe2},
  author = {J. F. Zhao and H. W. Ou and G. Wu and B. P. Xie and Y. Zhang and D. W. Shen and J. Wei and L. X. Yang and J. K. Dong and M. Arita and H. Namatame and M. Taniguchi and X. H. Chen and D. L. Feng},
  journal= {arXiv preprint arXiv:cond-mat/0612091},
  year   = {2009}
}

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5 pages, 4 figures

Evolution of the Electronic Structure of 1T-CuxTiSe2

Abstract

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