Experimental determination of correlations between spontaneously formed vortices in a superconductor

Daniel Golubchik; Emil Polturak; Gad Koren; Boris Ya. Shapiro; Irina Shapiro

doi:10.1007/s10909-011-0364-y

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arXiv · 1101.0409

Experimental determination of correlations between spontaneously formed vortices in a superconductor

Daniel Golubchik·Emil Polturak·Gad Koren·Boris Ya. Shapiro·Irina Shapiro

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Abstract

We have imaged spontaneously created arrays of vortices (magnetic flux quanta), generated in a superconducting film quenched through its transition temperature at rates around $10^9 K/s$. From these images, we calculated the positional correlation functions for two vortices and for 3 vortices. We compared our results with simulations of the time dependent Ginzburg Landau equation in 2D. The results are in agreement with the Kibble-Zurek scenario of spontaneous vortex creation. In addition, the correlation functions are insensitive to the presence of a gauge field.

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Daniel Golubchik, Emil Polturak, Gad Koren, Boris Ya. Shapiro, Irina Shapiro. 2011-01-02. Experimental determination of correlations between spontaneously formed vortices in a superconductor. https://doi.org/10.1007/s10909-011-0364-y

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