Spontaneous Fluxoid Formation in Superconducting Loops

@inproceedings{Monaco2009SpontaneousFF,
  title={Spontaneous Fluxoid Formation in Superconducting Loops},
  author={R. Monaco and J. Mygind and R. J. Rivers and V. P. Koshelets},
  year={2009}
}
We report on the experimental verification of the Zurek-Kibble scenario in an isolated superconducting ring over a wide parameter range. The probability of creating a single flux quantum spontaneously during the fast normal-superconducting phase transition of a wide Nb loop clearly follows a scaling relation on the quenching time Q, as one would expect if the transition took place as fast as causality permits. However, the observed Zurek-Kibble scaling exponent =0.62 0.15 is two times larger… CONTINUE READING

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