Quasiparticle-injection effect in YBa2Cu3Ox-based planar structures

Yu.M. Boguslavskij, K. Joosse, F.J.G. Roesthuis, G.J. Gerritsma, H. Rogalla

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Abstract

The supercurrent IS of a YBCO bridge can be modulated by the quasiparticle-injection current IG from YBCO/Au or YBCO/PBCO/Au junctions. The behavior of these structures is determined by two effects: 1) summation of the currents IS and IG in the YBCO bridge; 2) nonequilibrium suppression of the supercurrent IS by the quasiparticle-injection. The current gain coefficient ΔIS/ΔIG increases linearly with decreasing temperature, reaching a value of 1.5 for YBCO/Au structures at 65 K. The nature of the nonequilibrium state and the effectiveness of the PBCO barrier layer for the formation of the quasiparticles are analyzed.
Original languageEnglish
Pages (from-to)85-86
Number of pages2
JournalPhysica B
Volume194-196
Issue numberPart 1
DOIs
Publication statusPublished - 1994
Event20th International Conference on Low Temperature Physics, LT-20 1993 - Eugene, United States
Duration: 4 Aug 199311 Aug 1993
Conference number: 20

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