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Author |
Luzuriaga, J. |
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Title |
Pinning forces and defects as measured by critical currents in amorphous superconducting materials |
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Journal Article |
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Year |
1987 |
Publication |
Physical Review B |
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35 |
Issue |
7 |
Pages |
3625-3628 |
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Abstract |
Analysis of the available data on critical currents in amorphous superconductors shows a striking similarity in the defects responsible for the pinning force in all samples in which two-dimensional flux pinning can be observed. Order-of-magnitude calculations show that this is consistent with the existence of disclinations in glasses as has been proposed in different theoretical papers by Rivier, Nelson, Kleman, and Sadoc. The evolution of pinning forces with annealing also shows a similar behavior in all the published data, and the trend is towards a state with fewer or smaller disclinations. If disclinations are identified with two-level systems this trend is consistent with a decrease of the scattering of phonons by TLS which is observed upon annealing in thermal conductivity measurements. |
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Address |
Centro Atomico Bariloche, Instituto Balseiro, 8400 Bariloche, Argentina |
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ISSN |
01631829 (ISSN) |
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Notes |
Export Date: 28 April 2009; Source: Scopus; doi: 10.1103/PhysRevB.35.3625; Language of Original Document: English; Correspondence Address: Luzuriaga, J.; Centro Atomico Bariloche; Instituto Balseiro 8400 Bariloche, Argentina |
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Call Number |
BT @ luzuriag @ |
Serial |
497 |
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