Andreev bound states for superconducting-ferromagnetic box

J. Cserti; J. Koltai; C. J. Lambert

doi:10.1103/physrevb.69.092506

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Andreev bound states for superconducting-ferromagnetic box

J. Cserti·J. Koltai·C. J. Lambert

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Abstract

Within the microscopic Bogoliubov--de Gennes (BdG) formalism an exact quantization condition for Andreev bound states of the ferromagnetic-superconducting hybrid systems of box geometry is derived and a semi-classical formula for the density of states is obtained. The semi-classical formula is shown to agree with the exact result, even when the exchange field $h$, is much larger than the superconductor order parameter, provided $h$ is small compared with the Fermi energy.

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J. Cserti, J. Koltai, C. J. Lambert. 2003-06-20. Andreev bound states for superconducting-ferromagnetic box. https://doi.org/10.1103/physrevb.69.092506

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