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Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/18566

Title: Properties of Vortex Propagation in a Niobium Film with Spacing-graded Density of Pinning Sites
Authors: Horng, Lance;Wu, T. C.;Wu, Jong-Ching;Cao, R.;Yang, T. J.
Contributors: 物理學系
Date: 2007
Issue Date: 2014-06-06T07:18:53Z
Publisher: American Institute of Physics
Abstract: The vortex propagation has been investigated in Nb superconductors with one dimension spacing-graded density of submicrometer-scaled holes in this research. A rectification effect can be discerned because the applied ac is transformed into a net dc voltage. These results demonstrate that the rectification is mainly characterized by the asymmetric pinning landscape and the rectified voltage depends considerably on temperature and the amplitude of applied ac. The dc voltage increases steeply up to the maximum value and then decreases to zero dc voltage with the increase of ac. The shape of peaks in the dc voltage signal become steeper and move to higher applied ac regime with the decrease of temperature.
Relation: Journal of Applied Physics, 101(9): 09G113
Appears in Collections:[物理學系] 期刊論文

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