Intrinsic Josephson tunnel junctions fabricated on the surfaces of Bi2212 single crystals by photolithography

被引：38

作者：

Yurgens, A. ^{[1
,2
]}

Winkler, D. ^{[1
]}

Zhang, Y. M. ^{[1
]}

Zavaritsky, N. ^{[2
]}

Claeson, T. ^{[1
]}

机构：

[1] Chalmers Univ Technol, Dept Phys, S-41296 Gothenburg, Sweden

[2] PL Kapitza Inst Phys Problems, Moscow 117334, Russia

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1994年 / 235-40卷

关键词：

D O I：

10.1016/0921-4534(94)91161-4

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Stacked series arrays of intrinsic Josephson tunnel junctions were fabricated on the surfaces of single crystal Bi2Sr2CaCu2O8+x by photolithography. Both uniform Josephson coupling and a well developed gap structure are seen in the current-voltage ( I-V) characteristic at temperatures up to 90 K. For sufficiently high critical current density (j(c)>200 A/cm(2)) the junctions exhibit typical non-equilibrium effects due to self-injection of quasiparticles. This is manifested in a heavy back-bending of the I-V characteristics in the sum-gap region. The phonon-trapped effective quasiparticle recombination time tau(eff) was estimated to be about 2x10(-6) s at 20 K.

引用

页码：3269 / 3270

页数：2

共 6 条

[1] STUDY OF NONEQUILIBRIUM STATE OF SUPERCONDUCTORS BY LARGE QUASIPARTICLE INJECTION FROM AN EXTERNAL CURRENT SOURCE [J].