Spectral properties near the Mott transition in the two-dimensional Hubbard model with next-nearest-neighbor hopping

Masanori Kohno

doi:10.1103/physrevb.90.035111

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arXiv · 1406.0910

Spectral properties near the Mott transition in the two-dimensional Hubbard model with next-nearest-neighbor hopping

Masanori Kohno

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Abstract

The single-particle spectral properties near the Mott transition in the two-dimensional Hubbard model with next-nearest-neighbor hopping are investigated by using cluster perturbation theory. Complicated spectral features of this model are simply interpreted, by considering how the next-nearest-neighbor hopping shifts the spectral weights of the two-dimensional Hubbard model. Various anomalous features observed in hole-doped and electron-doped cuprate high-temperature superconductors are explained in a unified manner as properties near the Mott transition in a two-dimensional system whose spectral weights are shifted by next-nearest-neighbor hopping.

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Masanori Kohno. 2014-06-04. Spectral properties near the Mott transition in the two-dimensional Hubbard model with next-nearest-neighbor hopping. https://doi.org/10.1103/physrevb.90.035111

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