Spectral properties of the two-dimensional Hubbard model near the Mott transition are investigated by using cluster perturbation theory. The Mott transition is characterized by freezing of the charge degrees of freedom in a single-particle excitation that leads continuously to the magnetic excitation of the Mott insulator. Various anomalous spectral features observed in cuprate high-temperature superconductors are explained in a unified manner as properties near the Mott transition.
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Mott Transition in the Two-Dimensional Hubbard Model
Kohno, Masanori
Follow Physical Review Letters
, Volume 108 (7)
American Physical Society (APS) – Feb 17, 2012
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