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arXiv · 1706.03511

Non-equilibrium restoration of duality symmetry in the vicinity of the superconductor-insulator transition

I. Tamir·A. Doron·T. Levinson·F. Gorniaczyk·G. C. Tewari·D. Shahar
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Abstract

The magnetic field driven superconductor to insulator transition in thin films was theoretically analyzed via a vortex-charge duality transformation applied to the Hamiltonian. Vortices condensation was conjectured as the underline physical mechanism of the insulating phase. Experimental evidence supported duality symmetry across the magnetic-field driven superconductor to insulator transition in amorphous Indium Oxide films. Counterintuitively, duality symmetry is broken at low temperatures where the insulating phase develops strongly non linear current-voltage characteristics. Here, we follow the breakdown of duality symmetry down to very low temperatures and demonstrate the restoration of duality symmetry out of equilibrium.

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I. Tamir, A. Doron, T. Levinson, F. Gorniaczyk, G. C. Tewari, D. Shahar. 2017-09-28. Non-equilibrium restoration of duality symmetry in the vicinity of the superconductor-insulator transition. https://doi.org/10.1103/physrevb.96.104513

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