Josephson junction through a disordered topological insulator with helical magnetization

@article{Zyuzin2015JosephsonJT,
  title={Josephson junction through a disordered topological insulator with helical magnetization},
  author={Alexander A. Zyuzin and Mohammad Alidoust and Daniel Loss},
  journal={Physical Review B},
  year={2015},
  volume={93},
  pages={214502}
}
We study supercurrent and proximity vortices in a Josephson junction made of disordered surface states of a three-dimensional topological insulator with a proximity induced in-plane helical magnetization. In a regime where the rotation period of helical magnetization is larger than the junction width, we find supercurrent 0 - pi crossovers as a function of junction thickness, magnetization strength, and parameters inherent to the helical modulation and surface states. The supercurrent reversals… 

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