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Dimensional crossovers in collective flux pinning
Solid State Communications, 1986Abstract The pinning force density in ribbons of melt spun (a) Zr 70 Cu 30 is found to obey the Larkin-Ovchinnikov theory of collective pinning by dislocation loops, and shows two and three dimensional behaviour, besides an intermediate regime not contemplated by the theory.
E.N. Martinez +3 more
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2001
Summary As stated in the introduction of this article, I have tried to focus my review of published work on flux pinning in R-123 superconductors on those aspects which are in principle suited for achieving high critical current densities in these materials.
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Summary As stated in the introduction of this article, I have tried to focus my review of published work on flux pinning in R-123 superconductors on those aspects which are in principle suited for achieving high critical current densities in these materials.
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Recent developments in flux pinning
IEEE Transactions on Magnetics, 1987Considerable progress has recently been made regarding two fundamental aspects of flux pinning. A microscopic basis has been given for the elementary interaction potential of defects which are predominantly characterised by their electron scattering cross section.
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Geometrically large flux-line pins
Cryogenics, 1989Abstract Extensive theoretical work on the statistical summation of flux-line point pins cannot be applied in principle to the many experimental studies of pinning by large crystalline defects [dimensions larger than the flux-line-lattice (FLL) parameter].
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Suspension Experiments Using Flux Pinning
2019There are two methods that cool superconductors to liquid nitrogen temperature: zero-field cooling (ZFC) and field-cooling (FC). The ZFC superconductors can be levitated high above the magnet because they have a strong repulsive force of perfect diamagnetism.
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Flux pinning in Type II superconductors
2021This thesis was scanned from the print manuscript for digital preservation and is copyright the author. Researchers can access this thesis by asking their local university, institution or public library to make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
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Flux-pinning by superconductor-normal boundaries
Materials Letters, 1982Abstract It is shown that flux-pinning by Nb3Sn-Cu interfaces in in-situ superconducting composites can lead to a pinning function of the form F p ∝ b 1 2 (1 − b) 2 , as is found experimentally.
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Flux pinning in superconducting 123 materials
Superconductor Science and Technology, 2000Mechanisms, features, and properties of strong flux pinning in superconducting 123 materials are reviewed. These include pinning by nonsuperconducting particles of 211 or 422 phase, regions with lower critical temperature (Tc) such as a region where Ba sites are substituted for with light rare-earth elements and an oxygen-deficient region, and ...
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