Theoretical studies on anomalous phases of photodoped systems in two-band model

摘要

Expresions of the transition temperature for various anomalous phases are first derived in the framework of the two-band model for copper oxides. The effects of the photon field for the model are discussed under the Thomas-Fermi appromiation. A phase diagram for copper oxides in the photon field is shown. Phase diagrams for possible other mechanisms are also investigated theoretically in relation to electron scattering process.