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NEUTRON MEASUREMENTS OF THE VORTEX LATTICE IN YBA2CU3O7
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UNSPECIFIED (1993) NEUTRON MEASUREMENTS OF THE VORTEX LATTICE IN YBA2CU3O7. In: 37TH ANNUAL CONF ON MAGNETISM AND MAGNETIC MATERIALS, HOUSTON, TX, DEC 01-04, 1992. Published in: JOURNAL OF APPLIED PHYSICS, 73 (10 Part 2A). pp. 5855-5859. ISSN 0021-8979.
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Abstract
Neutron diffraction has been used to measure the vortex lattice scattering for YBa2Cu3O7. A square pattern is found when the field is applied along the c axis, while a triangular pattern is found when the field is applied well away from the c axis. High-resolution measurements for the square pattern show that the vortex lattice has long-range orientational order but only short-range positional order. The temperature dependence of the penetration depth is not that expected for a superconductor with a conventional s-wave BCS-type gap. Preliminary measurements for temperatures near the irreversibility line are consistent with the occurrence of melting of the vortex lattice or glass phase.
Item Type: | Conference Item (UNSPECIFIED) | ||||
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Subjects: | Q Science > QC Physics | ||||
Journal or Publication Title: | JOURNAL OF APPLIED PHYSICS | ||||
Publisher: | AMER INST PHYSICS | ||||
ISSN: | 0021-8979 | ||||
Official Date: | 15 May 1993 | ||||
Dates: |
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Volume: | 73 | ||||
Number: | 10 Part 2A | ||||
Number of Pages: | 5 | ||||
Page Range: | pp. 5855-5859 | ||||
Publication Status: | Published | ||||
Title of Event: | 37TH ANNUAL CONF ON MAGNETISM AND MAGNETIC MATERIALS | ||||
Location of Event: | HOUSTON, TX | ||||
Date(s) of Event: | DEC 01-04, 1992 |
Data sourced from Thomson Reuters' Web of Knowledge
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