Hyperfine-driven persistent currents in mesoscopic rings based on a 2D   electron gas with Rashba spin-orbit interaction
  We present a detailed theory of induced persistent current produced by hyperfine interaction in mesoscopic rings based on a 2D-electron (hole) gas in the absence of external magnetic field. The persistent current emerges due to combined action of the hyperfine interaction of charge carriers with polarized nuclei, spin-orbit interaction and Berry phase. 
V.A. Cherkaskiy, S.N. Shevchenko, A.S. Rozhavsky, and I.D. Vagner