28 citations · 108 across the 15 of their papers we have counts for
16 papers
Linear and nonlinear Edelstein effects in Rashba superconductors
Hikaru Ueki, Youichi Yanase
We formulate a quasiclassical theory of the Edelstein effect in superconductors that incorporates both intraband and interband contributions. To describe the interband contribution…
Photon Frequency Conversion in High- Superconducting Resonators: Axion Electrodynamics, QED & Nonlinear Meissner Radiation
Hikaru Ueki, J. A. Sauls
High-Q superconducting resonators have been proposed and developed as detectors of light-by-light scattering mediated by the hypothesized axion or virtual electron-positron pairs i…
Electromagnetic Response of Disordered Superconducting Cavities
Mehdi Zarea, Hikaru Ueki, J. A. Sauls
We present results for the resonant frequency shift and quality factor of disordered Nb SRF cavities driven out of equilibrium by the resonant microwave field. The theory is based…
Electromagnetic Response of Superconducting RF Cavities
Hikaru Ueki, Mehdi Zarea, J. A. Sauls
Recently reported anomalies in frequency shift of order $δf\sim 0.1 -10\,\mbox{kHz}$ for Niobium SRF cavities in a narrow temperature region near $T_c\simeq 9\,\mbox{K}$ are sensit…
The Frequency Shift and Q of Disordered Superconducting RF Cavities
Hikaru Ueki, Mehdi Zarea, J. A. Sauls
Niobium superconducting radio-frequency (SRF) cavities for high energy accelerator applications have been greatly improved in terms of the quality factor by techniques such as…
Effects of anisotropy and disorder on the superconducting properties of Niobium
Mehdi Zarea, Hikaru Ueki, J. A. Sauls
We report results for the superconducting transition temperature and anisotropic energy gap for pure Niobium based on Eliashberg's equations and electron and phonon band structures…
Charging in the vortex lattice of type-II superconductors
Marie Ohuchi, Hikaru Ueki, Takafumi Kita
We study the magnetic-field dependence of the vortex-core charge in the Abrikosov lattice of an -wave superconductor based on the augmented quasiclassical equations, where we in…
Zero-Field Surface Charge Due to the Gap Suppression in -Wave Superconductors
Ezekiel Sambo Joshua, Hikaru Ueki, Wataru Kohno +1
We perform a microscopic study on the redistribution of electric charge near the surface of a model -wave superconductor cut along the [110] direction, with a Fermi surface appr…
Phenomenology of the chiral -wave state in the hexagonal pnictide superconductor SrPtAs
Hikaru Ueki, Shoma Inagaki, Ryota Tamura +5
The pairing symmetry of the hexagonal pnictide superconductor SrPtAs is discussed with taking into account its multiband structure. The topological chiral -wave state with time-…
Drastic enhancement of the thermal Hall angle in a -wave superconductor
Hikaru Ueki, Hiroki Morita, Marie Ohuchi +1
A drastic enhancement of the thermal Hall angle in -wave superconductors was observed experimentally in a cuprate superconductor and in CeCoIn at low temperatures and very w…
Possibility of chiral -wave state in the hexagonal pnictide superconductor SrPtAs
Hikaru Ueki, Ryota Tamura, Jun Goryo
We discuss the type of pairing in the hexagonal pnictide superconductor SrPtAs, taking into account its multiband structure. The topological chiral -wave state with time-reversa…
Charging in a Superconducting Vortex Due to the Three Force Terms in Augmented Eilenberger Equations
Hikaru Ueki, Marie Ohuchi, Takafumi Kita
We derive augmented Eilenberger equations that incorporate the following missing force terms: (i) the Lorentz force, (ii) the pair-potential gradient (PPG) force, and (iii) the pre…
Charging due to Pair-Potential Gradient in Vortex of Type-II Superconductors
Marie Ohuchi, Hikaru Ueki, Takafumi Kita
Besides the magnetic Lorentz force familiar from the Hall effect in metals and semiconductors, there exists a mechanism for charging peculiar to superconductors that is caused by t…
Hall Effect in the Vortex Lattice of d-Wave Superconductors with Anisotropic Fermi surfaces
Wataru Kohno, Hikaru Ueki, Takafumi Kita
On the basis of the augmented quasiclassical theory of superconductivity with the Lorentz force, we study the mag- netic field dependence of the charge distribution due to the Lore…
Hall Effect in the Abrikosov Lattice of Type-II Superconductors
Wataru Kohno, Hikaru Ueki, Takafumi Kita
We study vortex charging caused by the Lorentz force on supercurrent based on the augmented quasiclassical equa- tions of superconductivity. Our numerical study on an s-wave vortex…
Vortex-Core Charging Due to the Lorentz Force in a -Wave Superconductor
Hikaru Ueki, Wataru Kohno, Takafumi Kita
We derive augmented quasiclassical equations of superconductivity with the Lorentz force in the Matsubara formalism so that the charge redistribution due to supercurrent can be cal…