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Investigation of superconductivity effects in single-phase and multiphase Bi2Sr2CaCu2O8 single-crystals at 2-MM wavelengths |
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| Authors: | M N Kotov V F Masterov V V Potapov A V Prichodko O V Smertin and N M Shybanova |
| Institution: | (1) Microwave Laboratory, Semiconductor Physics Institute, 11 A. Gostauto str., 2600 Vilnius, Lithuania;(2) Experimental Physics Department State Technical University, 29 Politechnitcheskaja str., St. Petersburg, Russia;(3)  Domen Scientific Research Institute, 8 Chernigovskaya str., St. Petersburg, Russia |
| Abstract: | Experimental investigations of superconductivity effects in single-phase and multiphase Bi2Sr2CaCu2O8 single-crystals have been carried out at 142 GHz frequency by means of the standing wave profile method 1]. Josephson harmonic generation has been observed to be responsible for the appearence of additional peaks on the standing wave profile of the open dielectric resonator loaded with a properly orientated multiphase high-Tc superconductor specimen. This leads to the conclusion that most of the Josephson junctions in multiphase crystals are located in certain crystallographic planes. The investigations of temperature dependencies showed that sharp resonant peaks of conductivity observed earlier 2] at 60 GHz could also be observed at 142 GHz. |
| Keywords: | High-Tc superconductors Open dielectric resonator Millimeter waves Josephson harmonic generation |
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