Tuning the 0$-Ï$ Josephson junction with a magnetic impurity: Role of tunnel contacts, exchange coupling, $e-e$ interactions and high-spin states
arXiv:1705.10989 · doi:10.1038/s41598-018-23517-w
Abstract
We propose Josephson junction with a high-spin magnetic impurity sandwiched between two superconductors. This system shows a $Ï$ junction behavior as a function of the spin magnetic moment state of the impurity, the interface transparency, exchange coupling and electron-electron interactions in the system. The system is theoretically analyzed for possible reason behind the $Ï$ shift. The crucial role of spin flip scattering is highlighted. Possible applications in quantum computation of our proposed tunable high spin magnetic impurity $Ï$ junction is underscored.
20 pages, 12 figures, accepted for publication in Scientific Reports