Spin-Polarized Majorana Bound States inside a Vortex Core in Topological Superconductors

  title={Spin-Polarized Majorana Bound States inside a Vortex Core in Topological Superconductors},
  author={Yuki Nagai and Hiroki Nakamura and Masahiko Machida},
  journal={Journal of the Physical Society of Japan},
We reveal that Majorana bound states inside the vortex core in an odd-parity topological superconductivity classified as “pseudo-scalar” type in the gap function are distinctly spin-polarized by solving the massive Dirac Bogoliubov–de Gennes (BdG) equation considering the spin–orbit coupling. This result is universal for “Dirac superconductivity” whose rotational degree of freedom is characterized by the total angular momentum J = S + L and in marked contrast to the spin-degeneracy of the core… 

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