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Magnetocapacitance: A probe of spin-dependent potentials

K. T. McCarthy·A. F. Hebard·S. B. Arnason
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Abstract

The magnetic field dependence of the capacitance of Pd-AlOx-Al thin-film structures has been measured. The observed quadratic dependence of capacitance on magnetic field is consistent with a theoretical model that includes the effect of a spin-dependent electrochemical potential on electron screening in the paramagnetic Pd. This spin-dependent electrochemical potential is related to the Zeeman splitting of the narrow d-bands in Pd. The quantitative details depend on the electronic band structure at the surface of Pd.

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K. T. McCarthy, A. F. Hebard, S. B. Arnason. 2002-06-22. Magnetocapacitance: A probe of spin-dependent potentials. https://doi.org/10.1103/physrevlett.90.117201

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