Superconductor-Ferromagnet Bi-Layers: a Comparison of s-Wave and d-Wave Order Parameters

Details Superconductor-Ferromagnet Bi-Layers: a Comparison of s-Wave and d-Wave Order Parameters Superconductor-Ferromagnet Bi-Layers: a Comparison of s-Wave and d-Wave Order Parameters

2004-02-28

arxiv.org/abs/cond-mat/0403009v1

J. Phys.: Condens. Matter 16, 2071 (2004)

Physics

Condensed Matter

Superconductivity

11 pages, 5 figures, accepted for publication in J. Phys.: Condens. Matter

Scientific paper

10.1088/0953-8984/16/12/016

We study superconductor-ferromagnet bi-layers, not only for s-wave but also for d-wave superconductors. We observe oscillations of the critical temperature when varying the thickness of the ferromagnetic layer for both s-wave and d-wave superconductors. However, for a rotated d-wave order parameter the critical temperature differs considerably from that for the unrotated case. In addition we calculate the density of states for different thicknesses of the ferromagnetic layer; the results reflect the oscillatory behaviour of the superconducting correlations.

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