Nonlinear inductive response of high temperature superconducting films measured by the mutual inductance technique

Clicks: 295
ID: 270975
1999
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Abstract
The dependence of the penetration depth λ on current densityJ in an unpatterned superconducting film can be measured with a pair of small coaxial coils positioned on opposite sides of the film. Mutual inductancemeasurements in this configuration with a direct-current (dc) current component in one of the coils provide a means to determine λ(J). It is possible to separate out the effects of heating by initially trapping a persistent current in the film. The nonlinear (current-dependent) coefficients of λ(J) measured by this “dc” technique agree well with those measured by third harmonic generation in coplanar waveguide transmission lines at 5 GHz. This nondestructure technique could be used to screen films before incorporating them into circuits sensitive to nonlinear effects.
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rudman1999appliednonlinear Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors J. H. Claassen,James C. Booth,J. A. Beall,L. R. Vale,R. H. Ono,D. A. Rudman;J. H. Claassen;James C. Booth;J. A. Beall;L. R. Vale;R. H. Ono;D. A. Rudman;
Journal Applied Physics Letters
Year 1999
DOI
10.1063/1.123248
URL
https://sciprofiles.com/publication/view/2b27d8323fd81fec0d3a1dcb52b31fa1
Keywords
current density thin film nondestructive testing copper electromagnetic field high temperature superconductor coplanar waveguide persistent current penetration depth transmission line

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