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Observation of vortex lattice melting in twinned YBa2Cu3O7-x using neutron small-angle scattering
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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 1098-0121.
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Abstract
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 | ||||
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Subjects: | Q Science > QC Physics | ||||
Journal or Publication Title: | PHYSICAL REVIEW B | ||||
Publisher: | AMER PHYSICAL SOC | ||||
ISSN: | 1098-0121 | ||||
Official Date: | 1 June 1998 | ||||
Dates: |
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Volume: | 57 | ||||
Number: | 22 | ||||
Number of Pages: | 7 | ||||
Page Range: | pp. 14511-14517 | ||||
Publication Status: | Published |
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