Properties of SAS Josephson junctions in SO(5) theory

Details Properties of SAS Josephson junctions in SO(5) theory Properties of SAS Josephson junctions in SO(5) theory

1998-11-10

arxiv.org/abs/cond-mat/9811133v1

Physics

Condensed Matter

Superconductivity

4 pages, 5 figures, RevTex

Scientific paper

We derive the qualitative behavior of superconductor-antiferromagnet- superconductor (SAS) Josephson junctions described by Zhang's SO(5) theory. The main differences between these junctions and conventional SIS junctions arise from the non-sinusoidal current-phase relation derived by Demler et al. for thin SAS junctions. Using a simple approximation to this non-sinusoidal function, the current voltage relation, Shapiro steps, thermal fluctuation effects and the diffraction pattern in a magnetic field are obtained.

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