Publication: Vortex motion channeling effects in Nb with mesoscopic arrays of Ni lines
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2003-05
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Elsevier Science BV
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Abstract
Ordered arrays of submicrometric Ni lines have been fabricated in sputtered Nb films. Magnetotransport R(H) and (I, V) curves were measured close to the critical temperature using a cross-shape bridge that allows us to apply current in two directions: parallel or perpendicular to the lines. The experimental results show anisotropic vortex motion with clear channeling effects. In R(H) data, magnetic features appear but they are absent in the (I, V) curves.
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©2003 Elsevier Science B.V. All rights reserved.
International Conference on Low Temperature Physics (LT23) (23. 2003. Hiroshima, Japón).
Work supported by Spanish CICYT under grant MAT99-0724. E. M. González thanks Spanish Ministerio de Ciencia y Tecnología for a Ramón y Cajal contract.