Strong- and weak-coupling mechanisms for pseudogap in electron-doped cuprates

Abstract

Using the two-particle self-consistent approach and cluster perturbation theory for the two-dimensional t-t′-t′′-U Hubbard model, we discuss weakand strong-coupling mechanisms for the pseudogap observed in recent angle resolved photoemission spectroscopy on electron-doped cuprates. In the case of the strong-coupling mechanism, which is more relevant near… (More)

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