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Article overview
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Current - voltage characteristics of break junctions of high-$T_c$
superconductors | | D M Gokhfeld
; D A Balaev
; K A Shaykhutdinov
; S I Popkov
; M I Petrov
; | | Date: |
5 Apr 2007 | | Subject: | cond-mat.supr-con (Superconductivity); cond-mat.dis-nn (Disordered Systems and Neural Networks) | | Abstract: | The current-voltage ($I$-$V$) characteristics of break junctions of
polycrystalline La$_{1.85}$Sr$_{0.15}$CuO$_4$,
Y$_{0.75}$Lu$_{0.25}$Ba$_2$Cu$_3$O$_{7-delta}$,
Bi$_{1.8}$Pb$_{0.3}$Sr$_{1.9}$Ca$_2$Cu$_3$O$_x$ and composite
YBa$_2$Cu$_3$O$_{7-delta}$ + Ag are investigated. The experimental $I$-$V$
curves exhibit the specific peculiarities of
superconductor/normal-metal/superconductor junctions. The relation between an
$I$-$V$ characteristic of network of weak links and $I$-$V$ dependencies of
typical weak links is suggested to describe the experimental data. The $I$-$V$
curves of typical weak links are calculated by the K"{u}mmel - Gunsenheimer -
Nicolsky model considering the multiple Andreev reflections. | | Source: | arXiv, arxiv.0704.0694 | | Services: | Forum | Review | PDF | Favorites | |
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