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- W2783252591 abstract "Unravelling the nature of doping-induced transition between a Mott insulator and a weakly correlated metal is crucial to understanding novel emergent phases in strongly correlated materials. For this purpose, we study the evolution of spectral properties upon doping Mott insulating states, by utilizing the cluster perturbation theory on the Hubbard and t-J-like models. Specifically, a quasi-free dispersion crossing the Fermi level develops with small doping, and it eventually evolves into the most dominant feature at high doping levels. Although this dispersion is related to the free electron hopping, our study shows that this spectral feature is in fact influenced inherently by both electron-electron correlation and spin exchange interaction: the correlation destroys coherence, while the coupling between spin and mobile charge restores it in the photoemission spectrum. Due to the persistent impact of correlations and spin physics, the onset of gaps or the high-energy anomaly in the spectral functions can be expected in doped Mott insulators." @default.
- W2783252591 created "2018-01-26" @default.
- W2783252591 creator A5004355730 @default.
- W2783252591 creator A5041993744 @default.
- W2783252591 creator A5063245081 @default.
- W2783252591 creator A5072227573 @default.
- W2783252591 creator A5082878841 @default.
- W2783252591 date "2018-03-12" @default.
- W2783252591 modified "2023-10-12" @default.
- W2783252591 title "Influence of magnetism and correlation on the spectral properties of doped Mott insulators" @default.
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- W2783252591 doi "https://doi.org/10.1103/physrevb.97.115120" @default.