4 papers
Nonlocal Cooper pairs in finite topological superconductors and their relation to Majorana nonlocality
Hiroto Mizoguchi, Yutaro Nagae, Yasuhiro Asano +1
We identify two fundamental properties of the Gor'kov Green's function of finite one-dimensional topological superconductors. In the low-frequency (low-energy) regime, the normal a…
Robust realization of spin-polarized specular Andreev reflection in VO-based altermagnets
Yutaro Nagae, Andreas P. Schnyder, Satoshi Ikegaya
We theoretically investigate charge transport in a junction between a conventional superconductor and a VO-based altermagnet exhibiting distinctive spin-split quasi-one-dimensi…
Spin-polarized Specular Andreev Reflections in Altermagnets
Yutaro Nagae, Andreas P. Schnyder, Satoshi Ikegaya
We show theoretically that specular Andreev reflection occurs stably at altermagnet--superconductor interfaces, which is a phenomenon that has previously been predicted only in a l…
Majorana flat bands and anomalous proximity effects in -wave magnet--superconductor hybrid systems
Yutaro Nagae, Leo Katayama, Satoshi Ikegaya
Flat-band Majorana bound states of nodal -wave superconductors give rise to striking electromagnetic anomalies, reflecting their high degree of degeneracy at the Fermi level. Ho…