195 citations · 277 across the 19 of their papers we have counts for
19 papers
Light-Driven Intrinsic Perfect Superconducting Diode Effect
Makoto Ichikawa, Youichi Yanase
We demonstrate the perfect superconducting diode effect (SDE) -- unidirectional supercurrent with 100% diode efficiency -- in light-driven nonequilibrium systems. Although the perf…
Superconducting diode effect in correlated electron systems by nonreciprocal magnetism
Kyohei Nakamura, Youichi Yanase
The superconducting diode effect (SDE), characterized by a nonreciprocal critical current in superconductors, has recently been observed in strongly correlated electron systems and…
Electron-Hole Scattering Dichotomy and Anisotropic Warping in Quasi-Two-Dimensional Fermi Surfaces of UTe2
Motoi Kimata, Jun Ishizuka, Freya Husstedt +13
We present a combined experimental and theoretical study of the detailed Fermi-surface (FS) geometry of UTe2, a heavy-fermion superconductor that has recently attracted considerabl…
Field-angle dependence of magnetoresistance in UTe2
Jun Ishizuka, Youichi Yanase
We theoretically study angle-resolved magnetoresistance under rotated magnetic field in the normal state of a spin-triplet superconductor UTe. The Wannier model derived from a…
Microwave Kerr/Faraday Resonance in Two-dimensional Chiral Superconductors
Taiki Matsushita, Jun'ichi Ieda, Yasufumi Araki +3
We investigate the polar Kerr and Faraday effects in two-dimensional multiband chiral superconductors. We show that the clapping modes--the relative phase and amplitude oscillation…
Intrinsic spin Nernst effect in spin-triplet superconductors
Taiki Matsushita, Youichi Yanase, Takeshi Mizushima +2
We theoretically investigate the intrinsic (impurity-independent) spin Nernst effect (SNE), a spin current generation perpendicular to temperature gradients, in spin-triplet superc…
Surface acoustic wave-driven valley current generation in intervalley coherent states
Hiroto Tanaka, Youichi Yanase
Recent experiments have reported valley-gauge-symmetry-broken phases, identified as intervalley coherent (IVC) states. Exploration of anomalous responses, particularly those analog…
Superconductivity in UTe from local noncentrosymmetricity
Ryuji Hakuno, Youichi Yanase
Superconductivity in UTe has garnered significant attention, as it is widely recognized as a promising candidate for a spin-triplet superconductor. However, the symmetry of s…
Superconducting Diode Effect in Weak Localization Regime
Naratip Nunchot, Youichi Yanase
We study a dirty two-dimensional superconductor with Rashba spin-orbit coupling and in-plane Zeeman fields described by the nonlinear sigma model that includes the Cooper and long-…
Supercurrent-induced antiferromagnetic order and spin-triplet pair generation in quantum critical d-wave superconductors
Kyohei Nakamura, Youichi Yanase
A supercurrent is well recognized as being of prime importance within mean-field theory, but remains largely unexplored in strongly correlated electron systems (SCES) and the quant…
Spin supercurrent in parity mixed superconductors with structural chirality
Keito Hara, Youichi Yanase
Chiral materials exhibit a spin filtering effect, so-called chirality-induced spin selectivity (CISS). A recent observation of spin accumulation at the ends of a chiral-structured…
Vertex correction for the linear and nonlinear optical responses in superconductors: multiband effect and topological superconductivity
Hiroto Tanaka, Youichi Yanase
Intensive research has revealed intriguing optical responses in topological materials. This paper focuses on the optical responses in -wave superconductors with a Rashba spin-or…
Nonlinear diode effect and Berezinskii-Kosterlitz-Thouless transition in purely two-dimensional noncentrosymmetric superconductors
Naratip Nunchot, Youichi Yanase
Phase diagrams and electronic transport properties of the helical states in purely two-dimensional (2D) Rashba superconductors coupled with in-plane Zeeman fields are studied. The…
Reciprocal and nonreciprocal paraconductivity in bilayer multiphase superconductors
Tsugumi Matsumoto, Youichi Yanase, Akito Daido
Thin-film multiphase superconductors are attracting much attention, and it is important to propose how to detect them in experiments. In this work, we study the reciprocal and nonr…
Evidence for a finite-momentum Cooper pair in tricolor -wave superconducting superlattices
T. Asaba, M. Naritsuka, H. Asaeda +9
Fermionic superfluidity with a nontrivial Cooper-pairing, beyond the conventional Bardeen-Cooper-Schrieffer state, is a captivating field of study in quantum many-body systems. In…
Magnetic parity violation and parity-time-reversal-symmetric magnets
Hikaru Watanabe, Youichi Yanase
Parity-time-reversal symmetry ( symmetry), a symmetry for the combined operations of space inversion () and time reversal (), is a fundament…
Nonlinear optical responses in superconductors under magnetic fields: quantum geometry and topological superconductivity
Hiroto Tanaka, Hikaru Watanabe, Youichi Yanase
Noncentrosymmetric superconductors offer fascinating phenomena of quantum transport and optics such as nonreciprocal and nonlinear responses. Time-reversal symmetry breaking often…
Fully gapped pairing state in spin-triplet superconductor UTe
S. Suetsugu, M. Shimomura, M. Kamimura +14
Spin-triplet superconductors provide an ideal platform for realizing topological superconductivity with emergent Majorana quasiparticles. The promising candidate is the recently di…
Unconventional Superconductivity in UTe2
D. Aoki, J. -P. Brison, J. Flouquet +4
The novel spin-triplet superconductor candidate UTe2 was discovered only recently at the end of 2018 and attracted enormous attention. We review key experimental and theoretical pr…