Abnormal magnetoresistance behavior in Nb thin film with rectangular antidot lattice

W. J. Zhang; S. K. He; B. H. Li; F. Cheng; B. Xu; Z. C. Wen; W. H. Cao; X. F. Han; S. P. Zhao; X. G. Qiu

doi:10.1088/1674-1056/21/7/077401

Abnormal magnetoresistance behavior in Nb thin film with rectangular antidot lattice

Mesoscale and Nanoscale Physics 2015-06-03 v2

Authors: W. J. Zhang , S. K. He , B. H. Li , F. Cheng , B. Xu , Z. C. Wen , W. H. Cao , X. F. Han , S. P. Zhao , X. G. Qiu

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Abstract

Abnormal magnetoresistance behavior is found in superconducting Nb films perforated with rectangular arrays of antidots (holes). Generally magnetoresistance were always found to increase with increasing magnetic field. Here we observed a reversal of this behavior for particular in low temperature or current density. This phenomenon is due to a strong 'caging effect' which interstitial vortices are strongly trapped among pinned multivortices.

Keywords

abnormal magnetoresistance Nb thin film rectangular antidot lattice superconducting film caging effect interstitial vortices flux pinning

Cite

@article{arxiv.1111.3862,
  title  = {Abnormal magnetoresistance behavior in Nb thin film with rectangular antidot lattice},
  author = {W. J. Zhang and S. K. He and B. H. Li and F. Cheng and B. Xu and Z. C. Wen and W. H. Cao and X. F. Han and S. P. Zhao and X. G. Qiu},
  journal= {arXiv preprint arXiv:1111.3862},
  year   = {2015}
}

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4 pages, 2 figures

Abnormal magnetoresistance behavior in Nb thin film with rectangular antidot lattice

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