Observation of vortex lattice melting in twinned YBa2Cu3O7-x using neutron small-angle scattering
UNSPECIFIED. (1998) Observation of vortex lattice melting in twinned YBa2Cu3O7-x using neutron small-angle scattering. PHYSICAL REVIEW B, 57 (22). pp. 14511-14517. ISSN 1098-0121Full text not available from this repository.
A neutron small-angle scattering study of the flux-line lattice in heavily twinned YBa2Cu3O7-x is presented. It is found that the diffraction signal disappears at temperatures well below: T-c, associated with a melting of the flux lattice. The shape of the melting line is consistent with both a Lindemann criterion and the scaling expected for a vortex-glass transition with the superconducting parameters from the three-dimensional XY model. The influence of twin planes on the structure of the vortex lattice and its melting is studied by applying; the field at different angles to the c axis. The results are compared with recent specific heat measurements on similar crystals.
|Item Type:||Journal Article|
|Subjects:||Q Science > QC Physics|
|Journal or Publication Title:||PHYSICAL REVIEW B|
|Publisher:||AMER PHYSICAL SOC|
|Official Date:||1 June 1998|
|Number of Pages:||7|
|Page Range:||pp. 14511-14517|
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