National Changhua University of Education Institutional Repository : Item 987654321/18512

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NCUEIR > College of Science > Department of Physics > Periodical Articles > Item 987654321/18512

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/18512

Title:	Matching Effect and Flux Pinning Force in a Nb Superconducting Thin Film with a Triangular Lattice of Articial Pinning Centers
Authors:	Horng, Lance;Wu, Jong-Ching;Kang, P. C.;Wu, T. C.;Yang, T. J.
Contributors:	物理學系
Keywords:	Matching effect;Pinning force;Critical current density;Superconducting thin film
Date:	2004-05
Issue Date:	2014-06-06T07:18:03Z
Publisher:	Elsevier
Abstract:	A strong pinning force in a Nb superconducting thin film is formed by a triangular lattice of defects due to the structural corrugation that acts as pinning centers. The magnetoresistance measurement close to the transition temperature shows a set of minima of magnetoresistance at equal external field intervals. A crossover in current–voltage relations with matching field and half-integer matching field occurs for currents exceeding a certain threshold value. The phenomenon is related to the presence of pinning structures at matching fields.
Relation:	Journal of Magnetism and Magnetic Materials, 272-276: e1107-e1108
Appears in Collections:	[Department of Physics] Periodical Articles

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