Abstract
The flux line lattice inside a single crystal of Bi2.15Sr 1.95CaCu2O8+x 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.
Original language | English |
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Pages (from-to) | 407-411 |
Number of pages | 5 |
Journal | Nature |
Volume | 365 |
Issue number | 6445 |
DOIs | |
Publication status | Published - 1993 |