2002/03/21 by E. V. Bezuglyi, E. V. Bezuglyı̆, A. S. Rozhavsky +2 · 3 citations
Materials Science · Physics and Astronomy · #Magnetic and transport properties of perovskites and related materials #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #cond-mat.mes-hall #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.66.052508
published as Physical Review B 66, 052508 (2002) · 4 pages, 4 figures
arxiv created 2002/03/21 · openalex publication_date 2002/08/12 · arxiv updated 2014/02/11 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We analyze spin effects in the current-carrying state of a superconductor--two-dimensional--electron gas--superconductor (S-2DEG-S) device with spin-polarized nuclei in the 2DEG region. The hyperfine interaction of 2D electrons with nuclear spins, described by the effective magnetic field B, produces Zeeman splitting of Andreev levels without orbital effects, which leads to an interference pattern of supercurrent oscillations over B. The spin-orbit effects in 2DEG cause a strongly anisotropic dependence of the Josephson current on the direction of B, which may be used as a probe for the spin-orbit interaction intensity. Under certain conditions, the system reveals the properties of \ensuremathπ junctions.