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The surface acoustic wave (SAW) propagating on a substrate is accompanied by fields which can interact with charge carriers in a metal film on the substrate. This interaction causes the attenuation of the SAW. In this work, the nonlinear interaction between the SAW and superconducting thin films deposited on the surface of substrates is presented. The attenuation constant of various superconducting thin films has been discussed to understand the effects of the propagation characteristics with frequency and temperature. The two-fluid model has been used to understand the complex conductivity of the superconducting thin films. The fruitful application of such devices for future research has also been discussed.
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