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Field induced superconductivity with enhanced and tunable paramagnetic limit

A. Buzdin·S. Tollis·J. Cayssol
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Abstract

We demonstrate that in a superconducting multilayered system with alternating interlayer coupling a new type of nonuniform superconducting state can be realized under in-plane magnetic field. The Zeeman effect in this state is compensated by the energy splitting between bonding and antibonding levels. Such compensation mechanism at low temperature leads to the field-induced superconductivity. We discuss the conditions for the experimental observation of the predicted phenomena.

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A. Buzdin, S. Tollis, J. Cayssol. 2005-05-31. Field induced superconductivity with enhanced and tunable paramagnetic limit. https://doi.org/10.1103/physrevlett.95.167003

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