Experimental determination of correlations between spontaneously formed vortices in a superconductor

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

doi:10.1007/s10909-011-0364-y

Experimental determination of correlations between spontaneously formed vortices in a superconductor

Daniel Golubchik, Emil Polturak, Gad Koren, Boris Y. Shapiro, Irina Shapiro

Department of Physics

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

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 consistent with the Kibble-Zurek scenario of spontaneous vortex creation. Effects due to fluctuations of the gauge field on the correlation functions are below our experimental resolution.

Original language	English
Pages (from-to)	74-80
Number of pages	7
Journal	Journal of Low Temperature Physics
Volume	164
Issue number	1-2
DOIs	https://doi.org/10.1007/s10909-011-0364-y
State	Published - Jul 2011

Bibliographical note

Funding Information:
Acknowledgements We thank S. Lipson and E. Buks for their contribution to this experiment. We thank S. Hoida, L. Iomin and O. Shtempluk for technical assistance. This work was supported in part by the Israel Science Foundation (Grant No. 499/07) and by the Minerva and DIP projects.

Keywords

Correlations
Kibble-Zurek mechanism
Magneto-optical imaging
Superconductor
TDGL simulations
Vortices

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10.1007/s10909-011-0364-y

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title = "Experimental determination of correlations between spontaneously formed vortices in a superconductor",

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 consistent with the Kibble-Zurek scenario of spontaneous vortex creation. Effects due to fluctuations of the gauge field on the correlation functions are below our experimental resolution.",

keywords = "Correlations, Kibble-Zurek mechanism, Magneto-optical imaging, Superconductor, TDGL simulations, Vortices",

author = "Daniel Golubchik and Emil Polturak and Gad Koren and Shapiro, {Boris Y.} and Irina Shapiro",

note = "Funding Information: Acknowledgements We thank S. Lipson and E. Buks for their contribution to this experiment. We thank S. Hoida, L. Iomin and O. Shtempluk for technical assistance. This work was supported in part by the Israel Science Foundation (Grant No. 499/07) and by the Minerva and DIP projects.",

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AU - Shapiro, Irina

N1 - Funding Information: Acknowledgements We thank S. Lipson and E. Buks for their contribution to this experiment. We thank S. Hoida, L. Iomin and O. Shtempluk for technical assistance. This work was supported in part by the Israel Science Foundation (Grant No. 499/07) and by the Minerva and DIP projects.

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N2 - 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 consistent with the Kibble-Zurek scenario of spontaneous vortex creation. Effects due to fluctuations of the gauge field on the correlation functions are below our experimental resolution.

AB - 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 consistent with the Kibble-Zurek scenario of spontaneous vortex creation. Effects due to fluctuations of the gauge field on the correlation functions are below our experimental resolution.

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KW - Kibble-Zurek mechanism

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Experimental determination of correlations between spontaneously formed vortices in a superconductor

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Keywords

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