Anomalous transfer of spectral weight in doped strongly correlated systems

H. Eskes, M. B. J. Meinders, and G. A. Sawatzky
Phys. Rev. Lett. 67, 1035 – Published 19 August 1991
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Abstract

A qualitative and quantitative description (exact diagonalization of finite clusters) of the doping dependence of one-electron-removal and -addition spectral weights is given. A half-filled Hubbard system in the localized limit has two low-energy electron-addition (removal) states for each hole (electron) created by doping. In contrast, a charge-transfer system in the localized limit is fundamentally asymmetric between hole and electron doping. However, when the hybridization is increased this asymmetry disappears quickly and both holes and electrons introduced by doping show a strongly correlated behavior.

  • Received 11 April 1991

DOI:https://doi.org/10.1103/PhysRevLett.67.1035

©1991 American Physical Society

Authors & Affiliations

H. Eskes, M. B. J. Meinders, and G. A. Sawatzky

  • Materials Science Centre, Department of Solid State and Applied Physics, University of Groningen, Nijenborgh 18, 9747 AG Groningen, The Netherlands

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Vol. 67, Iss. 8 — 19 August 1991

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