Andreev reflection with spin-flip scattering through a T-shaped double quantum dot

The nonequilibrium Green's function method is used for studying the spin-dependent Andreev reflection (AR) tunneling through a ferromagnetic double-quantum-dot superconductor (F-DQD-S). The results have shown that the spin-flip scattering process has suppressed the AR peaks and the resonance peaks are split with the increasing spin-flip scattering strength.