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Heroic holograms.

Author(s) : BISHOP D. J.

Type of article: Article

Summary

Description of a technique for imaging magnetic flux lines in a superconductor, using electron holography. Harada and co-workers (Hitachi's Advance Research Laboratory) have successfully adapted their method to image magnetic vortices in an oxide superconductor. They have been able to follow the vortices in a film of BSCCO, up through the melting temperature of the flux lattice. At low temperatures they observed a roughly triangular lattice of vortices that moves a little when temperature rises and is able to settle in a new static configuration. However, at the irreversibility temperature (well below critical temperature), they saw the lattice fade away: magnetic flux lattices can melt.

Details

  • Original title: Heroic holograms.
  • Record ID : 1994-2763
  • Languages: English
  • Source: Nature - vol. 366 - n. 6452
  • Publication date: 1993/11/18
  • Document available for consultation in the library of the IIR headquarters only.

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