@article{CTT100820265,
  author = {T. Machida and Y. Sun and S. Pyon and S. Takeda and Y. Kohsaka and T. Hanaguri and T. Sasagawa and T. Tamegai},
  title = {Zero-energy Vortex Bound State in the Superconducting Topological Surface State of Fe(Se,Te)},
  journal = {Nature Materials},
  year = 2019,
}