Angle-resolved photoemission spectroscopy of band tails in lightly doped cuprates

Details Angle-resolved photoemission spectroscopy of band tails in lightly doped cuprates Angle-resolved photoemission spectroscopy of band tails in lightly doped cuprates

2007-02-26

arxiv.org/abs/cond-mat/0702609v3

Physical Review B, v. 76, 132506 (2007)

Physics

Condensed Matter

Superconductivity

4 pages, 4 figures

Scientific paper

10.1103/PhysRevB.76.132506

We amend ab initio strongly-correlated band structures by taking into account the band-tailing phenomenon in doped charge-transfer Mott-Hubbard insulators. We show that the photoemission from band tails accounts for sharp "quasi-particle" peaks, rapid loss of their intensities in some directions of the Brillouin zone ("Fermi-arcs") and high-energy "waterfall" anomalies as a consequence of matrix-element effects of disorder-localised states in the charge-transfer gap of doped cuprates.

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