5 papers
Edge-induced pairing states in a Josephson junction through a spin-polarized quantum anomalous Hall insulator
Ryota Nakai, Kentaro Nomura, Yukio Tanaka
Despite the robustness of the chiral edge modes of quantum Hall systems against the superconducting proximity effect, Cooper pairs can penetrate into the chiral edge channels and c…
Weyl superconductor phases in a Weyl-semimetal/superconductor multilayer
Ryota Nakai, Kentaro Nomura
Topologically nontrivial superconducting phases have been engineered in topological materials by the proximity effect in contact with conventional superconductors. In this paper, b…
Real-time evolution and quantized charge pumping in magnetic Weyl semimetals
Takahiro Misawa, Ryota Nakai, Kentaro Nomura
Real-time evolution and charge pumping in magnetic Weyl semimetals are studied by solving the time-dependent Schrödinger equations. In the adiabatic limit of the real-time evolutio…
Nonreciprocal thermal and thermoelectric transport of electrons in noncentrosymmetric crystals
Ryota Nakai, Naoto Nagaosa
Nonreciprocal transport phenomena indicate that the forward and backward flows differ, and are attributed to broken inversion symmetry. In this paper, we study the nonreciprocity o…
Crossed responses of spin and orbital magnetism in topological insulators
Ryota Nakai, Kentaro Nomura
Crossed magnetic responses between spin and orbital angular momentum are studied in time-reversal symmetric topological insulators. Due to spin-orbit coupling in the quantum spin H…