Structure of vortex-bound states in spin-singlet chiral superconductors

  title={Structure of vortex-bound states in spin-singlet chiral superconductors},
  author={Darrick Lee and Andreas P. Schnyder},
  journal={Physical Review B},
We investigate the structure of vortex-bound states in spin-singlet chiral superconductors with $({d}_{{x}^{2}\ensuremath{-}{y}^{2}}\ifmmode\pm\else\textpm\fi{}i{d}_{xy})$-wave and $({d}_{xz}\ifmmode\pm\else\textpm\fi{}i{d}_{yz})$-wave pairing symmetries. It is found that vortices in the $({d}_{xz}\ifmmode\pm\else\textpm\fi{}i{d}_{yz})$-wave state bind zero-energy states, which are dispersionless along the vortex line, forming a doubly degenerate Majorana flat band. Vortex-bound states of $({d… 

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