Publication de 12 numéros par an
ISSN Imprimer: 0040-2508
ISSN En ligne: 1943-6009
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ON WGM RESONATOR TECHNIQUE FOR MICROWAVE CHARACTERIZATION OF SUPERCONDUCTORS IN NORMAL STATE
RÉSUMÉ
The paper presents preliminary results on the analysis of the applicability of microwave measurement techniques for study the properties of superconductors in normal state using dielectric resonators excited with whispering gallery modes (WGM). The expressions for microwave surface impedance for a normal conductor are derived. The experimental technique for measuring the surface impedance of superconductors in a normal state using mm-wave sapphire WGM resonator is proposed and described. The reliability of the proposed approach is demonstrated measuring the response of a resonator with copper samples is presented.
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Barannik, N., Cherpak, Y., Prokopenko, S., Vitusevich, V., and Yakovenko, V. (2017) Whispering gallery mode resonators in microwave physics and technologies, International Journal of Microwave and Wireless Technologies, 9, pp. 781-796.
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Barannik, A., Cherpak, N.T., Ni, N., Tanatar, M.A., Vitusevich, S.A. et al., (2011) Millimeter-wave study of London penetration depth temperature dependence in Ba(Fe0.926Co0.074)2As2 single crystal, Low Temperature Physics, 37(8), p. 725, (in Russian).
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Barannik, A., Cherpak, N.T., Tanatar, M.A., Vitusevich, S. et al., (2013) Millimeter-wave surface impedance of optimally-doped Ba(Fe1-xCox)2As2 single crystals, Physical Review B, 87, pp. 014506-1-014506-7.
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Cherpak, N.T., Barannik, A.A., Prozorov, R., Tanatar, M., and Velichko, A.V., (2013) On the determination of the quasiparticle scattering rate in unconventional superconductors by microwave surface impedance, Low Temperature Physics, 39(12), p. 1110, (in Russian).
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Cherpak Nickolay, Barannik Oleksandr, Prozorov Ruslan, Sun Liang, Tanatar Makariy, Wu Yun, He Yusheng, On Some Unsolved Problems in Microwav Uncoventional Superconductivity: from Authors’ Research Experience, 2020 IEEE Ukrainian Microwave Week (UkrMW), 2020. Crossref
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Ghigo Gianluca, Torsello Daniele, Resonant Methods for the Microwave Analysis of Unconventional Superconductors, in Microwave Analysis of Unconventional Superconductors with Coplanar-Resonator Techniques, 2022. Crossref