Abstract
In the current-induced resistive state of a type-I superconducting film trains of flux tubes traverse the strip perpendicular to the direction of the transport current. The nucleation site can be controlled by a constricted geometry. The sample-voltage drop V and the nucleation frequency υ* are coupled by the Josephson relation
where n is the number of flux quanta per flux tube and Φo is the flux quantum. Previous magneto-optical experiments [1] confirmed this dynamical behavior of the superconductor. An electrically insulated magneto-resistance probe in close proximity to the superconducting film allows to measure the nucleation frequency of the flux tubes including the frequency spectrum and the temporal fluctuations in a passive way.
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References
D.E. Chimenti, and R.P. Huebener, Solid State Comm. 21, 467 (1977)
D.E. Chimenti, H.L. Watson, and R.P. Huebener, J. Low Temp. Phys. 23, 303 (1976)
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© 1978 Springer-Verlag Berlin Heidelberg
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Selig, K.P., Chimenti, D.E., Huebener, R.P. (1978). Noise in the Flux-Tube Nucleation of the Current-Induced Resistive State of Type-I Superconductors. In: Wolf, D. (eds) Noise in Physical Systems. Springer Series in Electrophysics, vol 2. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-87640-0_36
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DOI: https://doi.org/10.1007/978-3-642-87640-0_36
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