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arXiv · 0910.1607

Type-1.5 Superconducting State from an Intrinsic Proximity Effect in Two-Band Superconductors

Egor Babaev·Johan Carlstrom·Martin Speight
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Abstract

We show that in multiband superconductors even small interband proximity effect can lead to a qualitative change in the interaction potential between superconducting vortices by producing long-range intervortex attraction. This type of vortex interaction results in unusual response to low magnetic fields leading to phase separation into domains of a two-component Meissner states and vortex droplets.

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Egor Babaev, Johan Carlstrom, Martin Speight. 2010-10-27. Type-1.5 Superconducting State from an Intrinsic Proximity Effect in Two-Band Superconductors. https://doi.org/10.1103/physrevlett.105.067003

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