Superconducting proximity effect in clean ferromagnetic layers

Abstract

We investigate superconducting proximity effect in clean ferromagnetic layers with rough boundaries. The subgap density of states is formed by Andreev bound states at energies which depend on trajectory length and the ferromagnetic exchange field. At energies above the gap, the spectrum is governed by resonant scattering states. The resulting density of states, measurable by tunneling spectroscopy, exhibits a rich structure, which allows to connect the theoretical parameters from experiments.

11 pages, 5 figures (included)

References in corpus (1)

• Reflectionless tunneling in ballistic normal-metal--superconductor junctions

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