Nonequilibrium restoration of duality symmetry in the vicinity of the superconductor-to-insulator transition
I. Tamir, A. Doron, T. Levinson, F. Gorniaczyk, G. C. Tewari, D. Shahar
DOI 10.1103/PhysRevB.96.104513 · Physical Review B
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Abstract
The magnetic field driven superconductor-to-insulator transition in thin films is theoretically understood in terms of the notion of vortex-charge duality symmetry. The manifestation of such symmetry is the exchange of roles of current and voltage between the superconductor and the insulator. While experimental evidence obtained from amorphous indium oxide films supported such duality symmetry, it is shown to be broken, counterintuitively, at low temperatures where the insulating phase exhibits discontinuous current-voltage characteristics. Here, we demonstrate that it is possible to effectively restore duality symmetry by driving the system beyond the discontinuity into its high current, far from equilibrium, state.
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| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| InO Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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