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cond-mat.supr-con2025
Exceptionally large winding number of a finite-size topological superconductor
Satoshi Ikegaya, Shingo Kobayashi, Yasuhiro Asano
We study finite-size-induced topological phenomena in unconventional superconductors. Specifically, we focus on a thin film with a persistent spin texture, fabricated on a high-$T_…
cond-mat.supr-con2025
Finite-momentum superconducting states due to odd-frequency Cooper pairing correlations
Takumi Sato, Satoru Hayami, Shingo Kobayashi +1
This paper discusses the origin of a nonuniform superconducting state in which Cooper pairs have a small but finite center-of-mass momentum. We analyze the instability of the norma…