The propagation of magnetostatic surface waves in ferrite/superconductor structures |
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| Authors: | A. A. Semenov S. F. Karmanenko A. A. Melkov A. V. Bobyl’ R. A. Suris Yu. M. Gal’perin T. H. Johansen |
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| Affiliation: | (1) St. Petersburg State University of Electrical Engineering, St. Petersburg, 197376, Russia;(2) Ioffe Physicotechnical Institute, Russian Academy of Sciences, Politekhnicheskaya ul. 26, St. Petersburg, 194021, Russia;(3) University of Oslo, P. O. Box 1048, Blindern, 0316 Oslo, Norway |
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| Abstract: | An electrodynamic model that describes the dispersion of magnetostatic surface waves in ferrite/superconductor structures is suggested. On its basis, a new approach to determining the microwave sheet resistance R S of superconducting films in a magnetic field is elaborated. The values calculated (R S =0.20–0.96 mΩ) agree with results obtained by the Tauber method. For YIG/YBCO structures, the controllable phase shift is about 1.5π when the depth of magnetostatic wave penetration into the YBCO film varies from 2.0 to 0.8 μm. |
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