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Effective field approach to transition-metal oxide systems: magnetism, transport and spectral properties
(2019) Zubov, E.E.; Zhitlukhina, E.S.
The goal of this monograph is to highlight the many-body and complex character of some metal-oxide heterostructure problems and to discuss recent theoretical advances in this field achieved by the authors. The concept of a self-consistent field based on the diagram method of the time-dependent perturbation theory is introduced and the following aspects of the theory applications are discussed: metal-insulator phase transition for a half-filled electron band; impact of the electron-phonon interaction on the excitation spectrum and damping in a narrow-band electron subsystem; possible mechanism of the high-temperature superconductivity in cuprates and specific magnetic and resistive properties of manganites, charge transport and resistive bipolar switching phenomenon in oxide-based heterostructures. For researchers working in the field of solid-state physics, PhD and master’s students at physical faculties of universities and research institutions.