Magnetic field modulation effects on the microwave transmission through superconducting thin films of Y-Ba-Cu-O

M. Golosovsky*, D. Davidov, C. Rettori, A. Stern

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

We have measured the magnitude and phase of the microwave transmission through thin films of Y-Ba-Cu-O on MgO substrate in the presence of a dc magnetic field H0 and an oscillating magnetic field. The oscillating field modulates the microwave transmission in the superconducting state with the generation of many high-order even harmonics for H0=0. For H0 0 there is a symmetry-breaking and additional odd-harmonic generation. This strong nonlinear behavior may be explained by a model which assumes an array of Josephson junctions and vortex motion in the presence of a magnetic field. An estimate of the Josephson-junction area is obtained from the field dependence of the amplitude of the second harmonic.

Original languageEnglish
Pages (from-to)9299-9302
Number of pages4
JournalPhysical Review B
Volume40
Issue number13
DOIs
StatePublished - 1989

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