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Transverse rectification in superconducting thin films with arrays of asymmetric defects

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González Herrera, Elvira María and Núñez Álvarez, Nuria Ofelia and Anguita, J. V. and Vicent López, José Luis (2007) Transverse rectification in superconducting thin films with arrays of asymmetric defects. Applied physics letters, 91 (6). ISSN 0003-6951

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Official URL: http://dx.doi.org/10.1063/1.2767199


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Abstract

Superconducting Nb films have been grown on top of arrays of Cu nanotriangles. These asymmetric pinning centers strongly modify the vortex lattice dynamics. Two rectification effects have been observed: (i) longitudinal ratchet effect when the input currents are injected perpendicular to the triangle reflection symmetry axis and (ii) transverse rectification effect hen the input currents are injected parallel to the triangle reflection symmetry axis and the output voltage drop occurs perpendicular to the triangle reflection symmetry axis. Increasing the applied magnetic field, the former shows a change of the output voltage polarity, the transverse output voltage does not show any polarity reversal.


Item Type:Article
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© 2007 American Institute of Physics.
The authors want to thank A. Kolton, V. Marconi, F. Nori, C. Olson-Reichhardt, C. Reichhardt, and S. Savel’ev for calling our attention to this transverse ratchet effect. They acknowledge funding support by Spanish Ministerio Educacion Ciencia grants NAN04-09087, FIS05-07392, MAT05-23924E, CAM grant S-0505/ESP/0337, and UCMSantander.

Uncontrolled Keywords:Motion
Subjects:Sciences > Physics > Materials
Sciences > Physics > Solid state physics
ID Code:43392
Deposited On:23 Jun 2017 13:49
Last Modified:26 Jun 2017 08:02

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