# Tuning the 0$-\pi$ Josephson junction with a magnetic impurity: Role of tunnel contacts, exchange coupling, $e-e$ interactions and high-spin states

## TL;DR

This paper investigates a Josephson junction with a high-spin magnetic impurity, analyzing how various parameters influence its transition to a $\

## Contribution

It introduces a theoretical model for a tunable high-spin magnetic impurity Josephson junction, highlighting the role of spin flip scattering and interface properties.

## Key findings

- The junction exhibits $\
- Spin flip scattering significantly affects the $\
- Potential applications in quantum computation are discussed.

## Abstract

We propose Josephson junction with a high-spin magnetic impurity sandwiched between two superconductors. This system shows a $\pi$ 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 $\pi$ shift. The crucial role of spin flip scattering is highlighted. Possible applications in quantum computation of our proposed tunable high spin magnetic impurity $\pi$ junction is underscored.