English  |  正體中文  |  简体中文  |  Items with full text/Total items : 6469/11641
Visitors : 18495225      Online Users : 233
RC Version 3.2 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Adv. Search
LoginUploadHelpAboutAdminister

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/18568

Title: Vortex Ratchet Effect in a Niobium Film with Spacing-graded Density of Pinning Sites
Authors: Wu, T. C.;Horng, Lance;Wu, Jong-Ching;Cao, R.;Koláček, Jan;Yang, T. J.
Contributors: 物理學系
Date: 2007
Issue Date: 2014-06-06T07:18:54Z
Publisher: American Institute of Physics
Abstract: The vortex propagation exhibits rectification effect in Nb superconductors with spacing-graded density of holes. A rectified dc voltage is obtained when the vortex lattice is driven by ac current. The asymmetric geometry of the pinning array produces a significant influence on the vortex motion. The rectified voltage depends considerably on the amplitude of the applied ac current and the magnetic field. The experimental results reveal a drastic change of the vortex rectification for magnetic field above∕below the first matching field. The reason may be that the interstitial vortices are formed in the film above the first matching field. A reversible vortex motion is induced by the interstitial vortices for the field above the first matching field.
Relation: Journal of Applied Physics, 102(3): 033918
Appears in Collections:[物理學系] 期刊論文

Files in This Item:

File SizeFormat
index.html0KbHTML358View/Open


All items in NCUEIR are protected by copyright, with all rights reserved.

 


DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback