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Transverse rectification in superconducting thin films with arrays of asymmetric defects

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González Herrera, Elvira María y Núñez Álvarez, Nuria Ofelia y Anguita, J. V. y 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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URL Oficial: http://dx.doi.org/10.1063/1.2767199


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Resumen

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.


Tipo de documento:Artículo
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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.

Palabras clave:Motion
Materias:Ciencias > Física > Física de materiales
Ciencias > Física > Física del estado sólido
Código ID:43392
Depositado:23 Jun 2017 13:49
Última Modificación:26 Jun 2017 08:02

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