Dresden 2003 – wissenschaftliches Programm

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MA: Magnetismus

MA 14: Poster: Schichten(1-31), Spinabh.Trsp.(32-47), Exch.Bias(48-54), Spindyn.(55-64), Mikromag.(65-76), Partikel(77-88), Oflmag.(89-92), Spinelektr.(93-98), Elektr.Theo.(99-103), Mikromag+PhasÜ+Aniso.(104-122), MagnMat.(123-134), Messm+Mol-Mag.(135-139), Kondo(140-151)

MA 14.43: Poster

Dienstag, 25. März 2003, 15:15–19:15, Zelt

On the possibility of a modulated order parameter induced by a spin-polarized current in ferromagnet/superconductor/ferromagnet double junctions — •Flavio Nogueira, Dirk Manske, and Karl-Heinz Bennemann — Institut für Theoretische Physik, Freie Universität Berlin

We propose a new method to study the ferromagnet/superconductor/ferromagnet double junctions using functional integrals. With this method we are able to reproduce known results, like for example the destruction of superconductivity by a critical bias voltage when the magnetization is antiferromagnetically aligned. We also discuss about the possible formation of a modulated state for the superconducting order parameter due to the spin-polarized transport.