Isotope effect on the electron band structure of doped insulators

Details Isotope effect on the electron band structure of doped insulators Isotope effect on the electron band structure of doped insulators

2004-07-08

arxiv.org/abs/cond-mat/0407217v2

Physical Review B, v.70, 224511 (2004)

Physics

Condensed Matter

Superconductivity

4 pages, 3 figures

Scientific paper

10.1103/PhysRevB.70.224511

Applying a continuous-time quantum Monte-Carlo algorithm we calculate the exact coherent band dispersion and the density of states of a two dimensional lattice polaron in the region of parameters where any approximation might fail. We find an isotope effect on the band structure, which is different for different wave-vectors of the Brillouin zone and depends on the radius and strength of the electron-phonon interaction. An isotope effect on the electron spectral function is also discussed.

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