Manipulating nonequilibrium magnetism through superconductors
arXiv:cond-mat/0503126 · doi:10.1103/PhysRevLett.95.066804
Abstract
Electrostatic control of the magnetization of a normal mesoscopic conductor is analyzed in a hybrid superconductor-normal-superconductor system. This effect stems from the interplay between the non-equilibrium condition in the normal region and the Zeeman splitting of the quasiparticle density of states of the superconductor subjected to a static in-plane magnetic field. Unexpected spin-dependent effects such as magnetization suppression, diamagnetic-like response of the susceptibility as well as spin-polarized current generation are the most remarkable features presented. The impact of scattering events is evaluated and let us show that this effect is compatible with realistic material properties and fabrication techniques.
5 pages, 4 figures
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- Superconductors as ideal spin sources for spintronics
- Spin supercurrent in Josephson contacts with noncollinear ferromagnets
- Fermi-liquid effects in the gapless state of marginally thin superconducting films
- Spin-Transfer and Exchange Torques in Ferromagnetic Superconductors
- Nonequilibrium spin-dependent phenomena in mesoscopic superconductor-normal metal tunnel structures
- Huge nonequilibrium magnetoresistance in hybrid superconducting spin valves
- Infrared catastrophe in two-quasiparticle collision integral
- Superconducting double spin valve with extraordinary large tunable magnetoresistance
- Proximity-driven source of highly spin-polarized ac current on the basis of superconductor/weak ferromagnet/superconductor voltage-biased Josephson junction