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11 papers · 2 filters
Zero-energy vortex bound state in the superconducting topological surface state of Fe(Se,Te)
T. Machida, Y. Sun, S. Pyon +5
Majorana quasiparticles (MQPs) in condensed matter play an important role in strategies for topological quantum computing but still remain elusive. Vortex cores of topological supe…
Spin supercurrent in two-dimensional superconductors with Rashba spin-orbit interaction
James Jun He, Kanta Hiroki, Keita Hamamoto +1
Spin current is a central theme in spintronics, and its generation is a keen issue. The spin-polarized current injection from the ferromagnet, spin battery, and spin Hall effect ha…
Mechanism of superconductivity and electron-hole doping asymmetry in -type molecular conductors
Hiroshi Watanabe, Hitoshi Seo, Seiji Yunoki
Unconventional superconductivity in molecular conductors is observed at the border of metal-insulator transitions in correlated electrons under the influence of geometrical frustra…
Surface symmetry breaking and disorder effects on superconductivity in perovskite BaBi3 epitaxial films
Wen-Lin Wang, Yi-Min Zhang, Nan-Nan Luo +11
The structural or electronic symmetry breaking of the host lattice is a recurrent phenomenon in many quantum materials, including superconductors. Yet, how these broken symmetry st…
Gate-controlled low carrier density superconductors: Toward the two-dimensional BCS-BEC crossover
Yuji Nakagawa, Yu Saito, Tsutomu Nojima +4
Superconductivity mostly appears in high carrier density systems and sometimes exhibits common phase diagrams in which the critical temperature Tc continuously develops with carrie…
Disorder-sensitive node-like small gap in FeSe
Yue Sun, Shunichiro Kittaka, Shota Nakamura +8
We investigate the band structure, nematic state and superconducting gap structure of two selected FeSe single crystals containing different amount of disorder. Transport and angle…