Year: 2004
Type: article
Abstract: We study the transverse electron focusing in a two-dimensional electron gas with Rashba spin-orbit coupling. We show that the interplay between the external magnetic field and the spin-orbit coupling gives two branches of states with different cyclotron radius within the same energy window. This effect generates a splitting of the first focusing peak in two contributions. Each one of these contributions is spin polarized. The surface reflection mixes the two branches and the second focusing peak does not present the same effect. While for $\mathrm{GaAs}∕\mathrm{AlGaAs}$ heterostructures the effect is small, in systems like $\mathrm{InSb}∕\mathrm{InAlSb}$ the effect should be clearly observed.
Source: Physical Review B
Authors: Gonzalo Usaj, C. Balseiro
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2036428155