2005/03/27 by Hui Pan, Pan, Hui, Tsung-Han Lin +3
Physics and Astronomy · #FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #cond-mat.mes-hall
paper · pdf · doi:10.48550/arxiv.cond-mat/0503636
9 pages, 3 figures
arxiv created 2005/03/27 · arxiv updated 2009/12/01
We investigate the spin-flip effects on the Andreev bound states and the supercurrent in a superconductor/quantum-dot/superconductor system theoretically. The spin-flip scattering in the quantum dot can reverse the supercurrent flowing through the system, and one π-junction transition occurs. By controlling the energy level of quantum dot, the supercurrent is reversed back and another π-junction transition appears. The different influences of the spin-flip scattering and the intradot energy level on the supercurrent are interpreted in the picture of Andreev bound states.