TITLE

Experimental manifestation of the breakpoint region in the current-voltage characteristics of intrinsic Josephson junctions

AUTHOR(S)
Irie, A.; Shukrinov, Yu. M.; Oya, G.
PUB. DATE
October 2008
SOURCE
Applied Physics Letters;10/13/2008, Vol. 93 Issue 15, p152510
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The experimental evidence of the breakpoint on the current-voltage characteristics (IVCs) of the stacks of intrinsic Josephson junctions (IJJs) is presented. The influence of the capacitive coupling on the IVCs of Bi2Sr2CaCu2Oy IJJs has been investigated. At 4.2 K, clear breakpoint region is observed on the branches in the IVCs. It is found that due to the coupling between junctions, the hysteresis observed on the IVC is small compared to that expected from the McCumber parameter. Measurements agree well with the results predicted by the capacitively coupled Josephson junction model including the diffusion current.
ACCESSION #
34984699

 

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