Title :
Novel superconducting switching device for microwave applications
Author :
Shaternik, V. ; Rudenko, E. ; Belogovskii, M.
Author_Institution :
Inst. of Metal Phys., Acad. of Sci., Kiev, Ukraine
Abstract :
We have developed a novel superconducting switch where the states of a quasiparticle tunnel junction (detector) are set with an external magnetic field generated by a control superconducting strip. Because the strip is only slightly overlaps the underlying junction, its non-uniform field with a high concentration near the edge strongly influences the junction current-voltage characteristics. A prototype of the device proposed has been realized on the base of thin Pb films separated by Sn oxide layers. A semiquantitative model of the switch operation using the critical-state approach is in good agreement with experimental data. After miniaturizing, applications in high-frequency superconducting microelectronics seem to be practically promising
Keywords :
lead; microwave switches; quasiparticles; superconducting microwave devices; superconducting switches; superconductive tunnelling; superconductor-insulator-superconductor devices; tin compounds; Pb-SnO2-Pb; critical state model; current-voltage characteristics; high-frequency superconducting microelectronics; magnetic field; microwave applications; quasiparticle tunnel junction; superconducting strip; superconducting switching device; Josephson junctions; Magnetic fields; Magnetic switching; Semiconductor counters; Strips; Superconducting devices; Superconducting epitaxial layers; Superconducting films; Superconducting microwave devices; Switches;
Conference_Titel :
Physics and Engineering of Millimeter and Sub-Millimeter Waves, 2001. The Fourth International Kharkov Symposium on
Conference_Location :
Kharkov
Print_ISBN :
0-7803-6473-2
DOI :
10.1109/MSMW.2001.946856
