Photoinduced superconductivity in copper oxides with two-component scenario

Abstract

We investigated the photostimulated superconducting phase trnansition temperature (Tc) in copper oxides with the two-component scenario. In the two-component model the superconductivity is caused by the interband repulsive electron-lattice and Coulomb interaction. The photoexcitation produces a change of the hole doping (p) and as a result the shift ΔTc of Tc of copper oxides. The Tc change is determined by the sign of dTc / dp and can be explained in terms of the phase diagram. The theory is compared with the available experimental data.