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Higashi, Yoichi*; Nagai, Yuki; Yoshida, Tomohiro*; Masaki, Yusuke*; Yanase, Yoichi*
Physical Review B, 93(10), p.104529_1 - 104529_10, 2016/03
Times Cited Count：11 Percentile：47.12(Materials Science, Multidisciplinary)no abstracts in English
Higashi, Yoichi*; Nagai, Yuki; Yoshida, Tomohiro*; Kato, Masaru*; Yanase, Yoichi*
Physica C, 518, p.1 - 4, 2015/11
Times Cited Count：0 Percentile：0(Physics, Applied)We study the excitation spectra and the wave functions of quasiparticle bound states at a vortex and an edge in bilayer Rashba superconductors under a magnetic field. In particular, we focus on the quasiparticle states at the zero energy in the pair- density wave state in a topologically non-trivial phase. We numerically demonstrate that the quasiparticle wave functions with zero energy are localized at both the edge and the vortex core if the magnetic field exceed the critical value.
Higashi, Yoichi*; Nagai, Yuki; Yoshida, Tomohiro*; Yanase, Yoichi*
Journal of Physics; Conference Series, 568(2), p.022018_1 - 022018_5, 2014/12
Times Cited Count：4 Percentile：82.5(Physics, Applied)We numerically study the electronic structure of a single vortex in two dimensional superconducting bilayer systems within the range of the mean-field theory. The lack of local inversion symmetry in the system is taken into account through the layer dependent Rashba spin-orbit coupling. The spatial profiles of the pair potential and the local quasiparticle density of states are calculated in the clean spin-singlet superconductor on the basis of the quasiclassical theory. In particular, we discuss the characteristic core structure in the pair-density wave state, which is spatially modulated exotic superconducting phase in a high magnetic field.
Higashi, Yoichi*; Nagai, Yuki; Machida, Masahiko; Hayashi, Nobuhiko*
Physical Review B, 88(22), p.224511_1 - 224511_6, 2013/12
Times Cited Count：3 Percentile：15.44(Materials Science, Multidisciplinary)no abstracts in English
Higashi, Yoichi*; Nagai, Yuki; Machida, Masahiko; Hayashi, Nobuhiko*
Journal of Physics; Conference Series, 400(2), p.022025_1 - 022025_4, 2012/12
Times Cited Count：2 Percentile：63.67(Physics, Applied)no abstracts in English
