Auger transition from orbitally degenerate systems: Effects of screening and multielectron excitations

Abstract

We calculate Auger spectra given by the two-hole Green's function from orbitally degenerate Hubbard-like models as a function of correlation strength and band filling. The resulting spectra are qualitatively different from those obtained from fully-filled singly degenerate models due to the presence of screening dynamics and multielectron excitations. Application to a real system shows remarkable agreement with experimental results leading to reinterpretation of spectral features.

To appear in Phy. Rev. Lett

References in corpus (1)

• Correlated Electrons in High Temperature Superconductors

Cited by in corpus (4)

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