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Título : Fabrication and properties of ac-dc superconducting rectifier
Autor : González, E. M., Villegas, J. E., González, M. P., Anguita, José Virgilio, Vicent, J. L.
Palabras clave : Rectifiers
Superconducting device fabrication
Superconducting devices
Superconducting films
Fecha de publicación : 13-Jun-2005
Editor: Institute of Electrical and Electronics Engineers
Citación : IEEE Transatios on Applied Superconductivity, 15, 2 (2005)
Resumen: Magnetron sputtering, electron beam lithography and etching techniques allow us to fabricate Nb thin films on array of periodic nonsuperconducting nanometric triangles. These asymmetric pinning potentials induce a ratchet effect on the vortex lattice motion: injecting an ac current on the sample yields a dc voltage. This rectification effect does not depend on the ac frequency in the kHz range. The effect occurs for magnetic as well as nonmagnetic pinning centers. The rectification is enhanced at lower temperatures.
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ISSN: 0018-9464
DOI: 10.1109/TASC.2005.850103
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