TITLE

Tunable anisotropic nonlinearity in superconductors with asymmetric antidot array

AUTHOR(S)
Aladyshkin, A. Yu.; Van de Vondel, J.; De Souza Silva, C. C.; Moshchalkov, V. V.
PUB. DATE
August 2008
SOURCE
Applied Physics Letters;8/25/2008, Vol. 93 Issue 8, p082501
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The influence of the spatial asymmetry of the pinning potential on the spectral composition of the voltage, induced in perforated superconducting Al bridges by the injection of a sinusoidal bias current, was investigated. The loss of the mirror symmetry of the pinning potential leads to the appearance of even Fourier components in the induced voltage in the vicinity of the superconducting phase transition line on the H-T diagram (H is the external magnetic field, and T is the temperature). Artificially-introduced asymmetry for vortex motion makes it possible to create low-resistive materials, in which nonlinearity depends on the direction of injected electrical currents.
ACCESSION #
34198847

 

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