Evidence for Thermally Activated Spontaneous Fluxoid Formation in Superconducting Thin-Film Rings

Details Evidence for Thermally Activated Spontaneous Fluxoid Formation in Superconducting Thin-Film Rings Evidence for Thermally Activated Spontaneous Fluxoid Formation in Superconducting Thin-Film Rings

2003-02-19

arxiv.org/abs/cond-mat/0302384v1

Physics

Condensed Matter

Superconductivity

4 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.90.257001

We have observed spontaneous fluxoid generation in thin-film rings of the amorphous superconductor Mo$_3$Si, cooled through the normal-superconducting transition, as a function of quench rate and externally applied magnetic field, using a variable sample temperature scanning SQUID microscope. Our results can be explained using a model of freezout of thermally activated fluxoids, mediated by the transport of bulk vortices across the ring walls. This mechanism is complementary to a mechanism proposed by Kibble and Zurek, which only relies on causality to produce a freezout of order parameter fluctuations.

Affiliated with

Also associated with

No associations

Rating

Evidence for Thermally Activated Spontaneous Fluxoid Formation in Superconducting Thin-Film Rings does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Evidence for Thermally Activated Spontaneous Fluxoid Formation in Superconducting Thin-Film Rings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evidence for Thermally Activated Spontaneous Fluxoid Formation in Superconducting Thin-Film Rings will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-721685