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

doi:10.1103/PhysRevB.40.9299

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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

DOI 10.1103/PhysRevB.40.9299 · Physical Review B

T1

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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.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBaCuO Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	80	Pressure not reported	unknown