Transverse Transport in Two-Dimensional Relativistic Systems with Nontrivial Spin Textures

Robustness of topological Hall effect of nontrivial spin textures

We analyze the topological Hall conductivity (THC) of topologically nontrivial spin textures like magnetic vortices and skyrmions and investigate its possible application in the readback for magnetic memory based on those spin textures. Under adiabatic conditions, such spin textures would theoretically yield quantized THC values, which are related to topological invariants such as the winding n...

Spin-polarized transport in low-dimensional systems

Quasi-two-dimensional spin transport wire

We demonstrate that in an inversion-asymmetric quasi-two-dimensional electron system (quasi2DES) with both Rashba and Dresselhaus spin-orbit couplings at present, certain transport directions on which no spin precession occurs can be found when the injected spin is properly polarized. By analyzing the expectation value of spin with respect the injected electron state on each space point in the ...

Slow Spin Relaxation in Two-Dimensional Electron Systems with Antidots

Nonlinear spin-thermoelectric transport in two-dimensional topological insulators

Sun-Yong Hwang,1,2 Rosa López,1,3 Minchul Lee,4 and David Sánchez1,3 1Institut de Fı́sica Interdisciplinària i Sistemes Complexos IFISC (CSIC-UIB), E-07122 Palma de Mallorca, Spain 2Pohang University of Science and Technology (POSTECH), Pohang 790-784, Korea 3Kavli Institute for Theoretical Physics, University of California, Santa Barbara, California 93106-4030, USA 4Department of Applied Physic...