11 citations · 36 across the 13 of their papers we have counts for
13 papers
Gaussian-Bond Hall Viscosity and Nonlocal Hall Response of a Sampled Landau Level
Danyu Shu, Ryotaro Sano, Ai Yamakage +2
Hall viscosity on a lattice depends on how strain changes microscopic hopping amplitudes. For a specified Gaussian envelope, bond-length derivatives close on the undeformed hopping…
Gyromagnetic Quantum Friction in Rayleigh Vorticity Baths
Mamoru Matsuo, Ryotaro Sano, Ai Yamakage +2
We identify an intrinsic zero-temperature relaxation channel for near-surface spins gyromagnetically coupled to Rayleigh-wave vorticity. This surface-mode contribution requires no…
Hanbury Brown-Twiss interferometry at the fractional quantum Hall edge
Ryotaro Sano, Fumihiro Murabayashi, Daigo Ichikawa +5
We propose a Hanbury Brown-Twiss interferometer for a fractional quantum Hall edge system, in which quasiparticles tunnel between two co-propagating edge modes. In contrast…
Microwave response of fractional quantum Hall droplets with quasiparticle tunneling
Fumihiro Murabayashi, Ryotaro Sano, Flavio Ronetti +4
We theoretically study microwave absorption spectroscopy of fractional quantum Hall droplets in the presence of quasiparticle tunneling across a quantum point contact. This contact…
Valley Hall Viscosity in Gapped Graphene with and without a Magnetic Field
Danyu Shu, Hiroshi Funaki, Ai Yamakage +2
Hall viscosity is conventionally defined through the stress response to time-dependent strain, a perturbation that is difficult to implement in solid-state experiments. We formulat…
Superconducting Acoustogalvanic Effect in Twisted Transition Metal Dichalcogenides
Tsugumi Matsumoto, Ryotaro Sano, Youichi Yanase +1
Two-dimensional van der Waals superconductors are attracting much attention owing to their rich phase diagrams including possible unconventional superconductivity. However, they su…
Directional propagation of quantum Hall viscous fluid by nano-structural engineering
Hiroshi Funaki, Ai Yamakage, Ryotaro Sano +1
We present a microscopic theory of the viscous electron fluid in the quantum Hall state based on the nonequilibrium Green's function method and the von Neumann lattice representati…
Unveiling the origin of diffusion suppression of hydrogen isotopes at the α-Al2O3(0001)/α-Cr2O3(0001) interfaces
Yuji Kunisada, Ryotaro Sano, Norihito Sakaguchi
It has been reported that the α-Al2O3, a promising tritium permeation barrier material for a fusion reactor, can be grown at low temperatures on the α-Cr2O3 template, and that α-Al…
Chirality-induced spin selectivity by variable-range hopping along DNA double helix
Ryotaro Sano, Takeo Kato
We here present a variable-range hopping model to describe the chirality-induced spin selectivity along the DNA double helix. In this model, DNA is considered as a one-dimensional…
Acousto-magnonic spin Hall effect in honeycomb antiferromagnets
Ryotaro Sano, Yuya Ominato, Mamoru Matsuo
The recently discovered van der Waals antiferromagnets have suffered from the lack of a comprehensive method to study their magnetic properties. Here, we propose a dissipationless…
Breaking down the magnonic Wiedemann-Franz law in the hydrodynamic regime
Ryotaro Sano, Mamoru Matsuo
Recent experiments have shown an indication of a hydrodynamic magnon behavior in ultrapure ferromagnetic insulators; however, its direct observation is still lacking. Here, we deri…
Valley hydrodynamics in gapped graphene
Ryotaro Sano, Daigo Oue, Mamoru Matsuo
Recent experiments have revealed that novel nonequilibrium states consistent with the hydrodynamic description of electrons are realized in ultrapure graphene, which hosts the vall…
Nonreciprocal electron hydrodynamics under magnetic fields: applications to nonreciprocal surface magnetoplasmons
Ryotaro Sano, Riki Toshio, Norio Kawakami
Recent experiments have elucidated that novel nonequilibrium states inherent in the so-called hydrodynamic regime are realized in ultrapure metals with sufficiently strong momentum…