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Controlled manipulation of individual vortices in a superconductor

Appl. Phys. Lett. 93, 172514 (2008); doi:10.1063/1.3000963

Published 30 October 2008

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E. W. J. Straver,1 J. E. Hoffman,1,2 O. M. Auslaender,1 D. Rugar,3 and Kathryn A. Moler1
1Departments of Applied Physics and Physics and Geballe Laboratory for Advanced Materials, Stanford University, Stanford, California 94305, USA
2Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
3IBM Research Division, Almaden Research Center, 650 Harry Road, San Jose, California 95120, USA
We report controlled local manipulation of single vortices by low temperature magnetic force microscopy in a thin film of superconducting Nb. We are able to position the vortices in arbitrary configurations and to measure the distribution of local depinning forces. This technique opens up possibilities for the characterization and use of vortices in superconductors. ©2008 American Institute of Physics
History: Received 6 August 2008; accepted 24 September 2008; published 30 October 2008
Permalink: http://link.aip.org/link/?APPLAB/93/172514/1
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KEYWORDS and PACS

Keywords
PACS
  • 74.25.Qt
    Vortex lattices, flux pinning, flux creep
  • 74.78.-w
    Superconducting films and low-dimensional structures
  • 74.70.Ad
    Superconducting metals, alloys and binary compounds
  • YEAR: 2008

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ISSN:
0003-6951 (print)   1077-3118 (online)
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