Fluxoid dynamics in superconducting thin film rings

J. R. Kirtley; C. C. Tsuei; V. G. Kogan; J. R. Clem; H. Raffy; Z. Z. Li

doi:10.1103/PhysRevB.68.214505

Fluxoid dynamics in superconducting thin film rings

Superconductivity 2009-11-10 v2

Authors: J. R. Kirtley , C. C. Tsuei , V. G. Kogan , J. R. Clem , H. Raffy , Z. Z. Li

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Abstract

We have measured the dynamics of individual magnetic fluxoids entering and leaving photolithographically patterned thin film rings of the underdoped high-temperature superconductor Bi $_2$ Sr $_2$ CaCu $_2$ O $_{8+\delta}$ , using a variable sample temperature scanning SQUID microscope. These results can be qualitatively described using a model in which the fluxoid number changes by thermally activated nucleation of a Pearl vortex in, and transport of the Pearl vortex across, the ring wall.

Keywords

fluxoid dynamics superconducting thin film ring geometry Bi2Sr2CaCu2O8 Pearl vortex thermal nucleation SQUID microscope

Cite

@article{arxiv.cond-mat/0302415,
  title  = {Fluxoid dynamics in superconducting thin film rings},
  author = {J. R. Kirtley and C. C. Tsuei and V. G. Kogan and J. R. Clem and H. Raffy and Z. Z. Li},
  journal= {arXiv preprint arXiv:cond-mat/0302415},
  year   = {2009}
}

Comments

9 pages, 10 figures, fixed typos

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