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Direct observation of magnetic flux lattice melting and decomposition in the high-critical temperature superconductor BSCCO.

Author(s) : CUBITT R., FORGAN E. M., YANG G., LEE S. L., PAUL D. M., MOOK H. A., YETHIRAJ M., KES P. H., LI T. W., MENOVSKY A. A., TARNAWSKI Z., MORTENSEN K.

Type of article: Article

Summary

The flux line lattice inside a single crystal has been observed using small-angle neutron diffraction. The diffracted intensity goes rapidly to zero at a magnetic-field-dependent flux lattice melting temperature; this melting coincides with the appearance of finite resistance within the superconducting state. The flux lattice signal can also be made to disappear at low temperatures, by applying a sufficiently high field, probably because of the decomposition of flux lines into two-dimensional "pancake" vortices.

Details

  • Original title: Direct observation of magnetic flux lattice melting and decomposition in the high-critical temperature superconductor BSCCO.
  • Record ID : 1994-1422
  • Languages: English
  • Source: Nature - vol. 365 - n. 6445
  • Publication date: 1993/09/30
  • Document available for consultation in the library of the IIR headquarters only.

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