Hall Effect due to channeled pinning potential in Nb thin films

T. C. Wu; Y. H. Chen; M. W. Yang; R. Cao; T. J. Yang; J. C. Wu; Lance Horng

doi:10.1016/j.tsf.2011.03.080

Hall Effect due to channeled pinning potential in Nb thin films

T. C. Wu, Y. H. Chen, M. W. Yang, R. Cao, T. J. Yang, J. C. Wu, Lance Horng

物理學系

研究成果: Article

摘要

We have studied the Magnetoresistance and Hall Effect in Nb superconducting thin films with triangular arrays of holes. Three different arrays of defects have been prepared with different orientations with respect to the current. Because vortex dynamics in the mixed state in type-II superconductors is strongly influenced by the pinning centers, a channeled pinning landscape is formed by the pinned vortices. It is suggested that the motion of interstitial vortices has great influence by the channel. When vortices propagate through these arrays, both the longitudinal and transversal voltages show cusp-like anomalies at matching fields. Vortices can be guided by the channel formed between pinned vortices. The longitudinal voltages are the same when there is a sign change of magnetic field. The longitudinal and transversal Hall voltages are dependent on the rotating angle of the arrays.

原文	English
頁（從 - 到）	8317-8319
頁數	3
期刊	Thin Solid Films
卷	519
發行號	23
DOIs	https://doi.org/10.1016/j.tsf.2011.03.080
出版狀態	Published - 2011 九月 30

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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10.1016/j.tsf.2011.03.080

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Wu, T. C., Chen, Y. H., Yang, M. W., Cao, R., Yang, T. J., Wu, J. C., & Horng, L. (2011). Hall Effect due to channeled pinning potential in Nb thin films. Thin Solid Films, 519(23), 8317-8319. https://doi.org/10.1016/j.tsf.2011.03.080

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AU - Wu, J. C.

AU - Horng, Lance

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