932 citations · 3.4k across the 11 of their papers we have counts for
11 papers
Nonreciprocal electrical transport in multiferroic semiconductor (Ge,Mn)Te
Ryutaro Yoshimi, Minoru Kawamura, Kenji Yasuda +4
We have investigated the nonreciprocal electrical transport, that is a nonlinear resistance effect depending on the current direction, in multiferroic Rashba semiconductor (Ge,Mn)T…
Interfacial ferroelectricity in rhombohedral-stacked bilayer transition metal dichalcogenides
Xirui Wang, Kenji Yasuda, Yang Zhang +6
Van der Waals (vdW) materials have greatly expanded our design space of heterostructures by allowing individual layers to be stacked at non-equilibrium configurations, for example…
Experimental signature of parity anomaly in semi-magnetic topological insulator
M. Mogi, Y. Okamura, M. Kawamura +9
A three-dimensional topological insulator features a two-dimensional surface state consisting of a single linearly-dispersive Dirac cone. Under broken time-reversal symmetry, the s…
Stacking-engineered ferroelectricity in bilayer boron nitride
Kenji Yasuda, Xirui Wang, Kenji Watanabe +2
2D ferroelectrics with robust polarization down to atomic thicknesses provide novel building blocks for functional heterostructures. Experimental reports, however, remain scarce be…
Quantized chiral edge conduction on reconfigurable domain walls of a magnetic topological insulator
K. Yasuda, M. Mogi, R. Yoshimi +5
The electronic orders in magnetic and dielectric materials form the domains with different signs of order parameters. The control of configuration and motion of the domain walls (D…
Current-nonlinear Hall effect and spin-orbit torque magnetization switching in a magnetic topological insulator
K. Yasuda, A. Tsukazaki, R. Yoshimi +5
Precise estimation of spin Hall angle as well as successful maximization of spin-orbit torque (SOT) form a basis of electronic control of magnetic properties with spintronic functi…
Large Unidirectional Magnetoresistance in a Magnetic Topological Insulator
K. Yasuda, A. Tsukazaki, R. Yoshimi +3
We report current-direction dependent or unidirectional magnetoresistance (UMR) in magnetic/nonmagnetic topological insulator (TI) heterostructures, Cr(BiSb)$_{2-x}…
Interface-driven topological Hall effect in SrRuO-SrIrO bilayer
J. Matsuno, N. Ogawa, K. Yasuda +5
Electron transport coupled with magnetism has attracted attention over the years as exemplified in anomalous Hall effect due to a Berry phase in momentum space. Another type of unc…
Magnetic modulation doping in topological insulators toward higher-temperature quantum anomalous Hall effect
M. Mogi, R. Yoshimi, A. Tsukazaki +5
Quantum anomalous Hall effect (QAHE), which generates dissipation-less edge current without external magnetic field, is observed in magnetic-ion doped topological insulators (TIs),…
Brillouin-Wigner theory for high-frequency expansion in periodically driven systems: Application to Floquet topological insulators
Takahiro Mikami, Sota Kitamura, Kenji Yasuda +3
We construct a systematic high-frequency expansion for periodically driven quantum systems based on the Brillouin-Wigner (BW) perturbation theory, which generates an effective Hami…
Quantum Hall States Stabilized in Semi-magnetic Bilayers of Topological Insulators
R. Yoshimi, K. Yasuda, A. Tsukazaki +4
By breaking the time-reversal-symmetry in three-dimensional topological insulators with introduction of spontaneous magnetization or application of magnetic field, the surface stat…