Influence of the domain walls on the Josephson effect in Sr${}_2$RuO${}_4$

Abstract

A detailed theoretical interpretation of the Josephson interference experiment between Sr${}_2$RuO${}_4$ and Pb reported by Kidwingira \textit{et al} is given. Assuming chiral p-wave pairing symmetry a Ginzburg-Landau theory is derived in order to investigate the structure of domain walls between chiral domains. It turns out that anisotropy effects of the Fermi surface and the orientation of the domain walls are essential for their internal structure. Introducing a simple model for a Josephson junction the effect of domain walls intersecting the interface between Sr${}_2$RuO${}_4$ and Pb is discussed. It is shown that characteristic deviations of the Fraunhofer interference pattern for the critical Josephson current as a function of the magnetic field occurs in qualitative agreement with the experimental finding. Moreover the model is able also to account for peculiar hysteresis effects observed in the experiment.

16 pages, 18 figures

References in corpus (4)

• High Resolution Polar Kerr Effect Measurements of Sr2RuO4: Evidence for Broken Time Reversal Symmetry in the Superconducting State
• Upper limit on spontaneous supercurrents in Sr${}_2$RuO${}_4$
• Suppression of Spontaneous Supercurrents in a Chiral p-Wave Superconductor
• Josephson interferometer in a ring topology as a symmetry prove of Sr_2RuO_4

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• Time-Reversal Invariant Superconductivity of Sr${}_2$RuO${}_4$ Revealed by Josephson Effects
• Anomalous switching in Nb/Ru/Sr2RuO4 topological junctions by chiral domain wall motion
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• Topological competition of superconductivity in Pb/Ru/Sr_2RuO_4 junctions
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• Inversion symmetry of Josephson current as test of chiral domain wall motion in Sr${}_2$RuO${}_4$
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• Domain walls in a chiral d-wave superconductor on the honeycomb lattice
• Chiral p-wave superconductors have complex coherence and magnetic field penetration lengths
• Domain walls in chiral p-wave superconductors: Quasiparticle spectrum and dynamics
• Domain walls in superconductors: Andreev bound states and tunneling features
• Penetration of nonquantized magnetic flux through a domain-wall bend in time-reversal symmetry broken superconductors
• A Review of Electronic Transport in Superconducting Sr${}_2$RuO${}_4$ Junctions
• Thermomodulated intrinsic Josephson effect in Kagome CsV3Sb5
• Half-quantum vortices on c-axis domain walls in chiral p-wave superconductors
• Magnetoresistance hysteresis in the superconduting state of Kagome CsV${}_3$Sb${}_5$
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• Chiral non-Abelian domain walls in the Ginzburg-Landau theory
• Interaction between domain walls in chiral p-wave superconductors