Ferromagnetism and Rashba Spin–Orbit Coupling in the Two-Dimensional (V,Pt)Se₂ Alloy

On two-dimensional ferromagnetism

We study the existence of minimizers for 2-dimensional ferromagnetism with various assumptions on different terms of the total energy. Our general philosophy for finding the minimizing magnetizations is to reduce this problem to a minimization problem for a new energy over a divergence-free field. Such a general philosophy works for all dimensions. However, in the twodimensional case, since the...

Competition between spin-orbit interaction and Zeeman coupling in Rashba two-dimensional electron gases

The influence of the Rashba spin-orbit coupling on the two-dimensional magnetoexcitons.

The influence of the Rashba spin-orbit coupling (RSOC) on the two-dimensional (2D) electrons and holes in a strong perpendicular magnetic field leads to different results for the Landau quantization in different spin projections. In the Landau gauge the unidimensional wave vector describing the free motion in one in-plane direction is the same for both spin projections, whereas the numbers of L...

Spin-Hall effect in two-dimensional electron systems with Rashba spin-orbit coupling and disorder.

Using the four-terminal Landauer-Bu ttiker formula and Green's function approach, we calculate numerically the spin-Hall conductance in a two-dimensional junction system with the Rashba spin-orbit (SO) coupling and disorder. We find that the spin-Hall conductance can be much greater or smaller than the universal value e/8pi, depending on the magnitude of the SO coupling, the electron Fermi ener...

The Kondo temperature of a two-dimensional electron gas with Rashba spin-orbit coupling.

We use the Hirsch-Fye quantum Monte Carlo method to study the single magnetic impurity problem in a two-dimensional electron gas with Rashba spin-orbit coupling. We calculate the spin susceptibility for various values of spin-orbit coupling, Hubbard interaction, and chemical potential. The Kondo temperatures for different parameters are estimated by fitting the universal curves of spin suscepti...