Manipulation with spin of Andreev levels
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We now investigate methods of manipulation with the Andreev bound states in Josephson quantum point contacts containing a magnetic scatterer, e.g. magnetic nanoparticle situating between the superconducting electrodes , Fig 1 . The Andreev level subsystem in such junctions can, contrary to non-magnetic junctions, have a finite ground state spin-polarization, which allows a way of manipulation by resonantly driving the direction of magnetic moment of the scatterer resulting in temporal oscillation of the Josephson current and Andreev state spin polarization.
SSF-OXIDE, Swedich Research Council (VR)