Josephson interferometer in a ring topology as a symmetry prove of Sr_2RuO_4

Abstract

The Josephson effect is theoretically studied in two types of SQUIDs consisting of $s$ wave superconductor and Sr${}_2$RuO${}_4$. Results show various response of the critical Josephson current to applied magnetic fields depending on the type of SQUID and on the pairing symmetries. In the case of a $p_x+i{p}_y$ wave symmetry, the critical current in a corner SQUID becomes an asymmetric function of magnetic fields near the critical temperatures. Our results well explain a recent experimental finding [Nelson et. al, Science \textbf{306}, 1151 (2004)]. We also discuss effects of chiral domains on the critical current.

7 pages

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Cited by in corpus (31)

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• Anomalous Josephson current, incipient time-reversal symmetry breaking, and Majorana bound states in interacting multi-level dots
• Phase-sensitive tests of the pairing state symmetry in Sr2RuO4
• Orientation-dependent Josephson effect in spin-singlet superconductor/altermagnet/spin-triplet superconductor junctions
• Time-Reversal Invariant Superconductivity of Sr${}_2$RuO${}_4$ Revealed by Josephson Effects
• Anomalous Transport through the p-Wave Superconducting Channel in the 3-K Phase of Sr2RuO4
• Influence of the domain walls on the Josephson effect in Sr${}_2$RuO${}_4$
• Detecting Topological Superconductivity with ${\phi }_0$ Josephson Junctions
• Anomalous surface states at interfaces in p-wave superconductors
• Spontaneous spin accumulation in singlet-triplet Josephson junctions
• Charge and spin supercurrents in triplet superconductor--ferromagnet--singlet superconductor Josephson junctions
• Geometric Induction in Chiral Superconductors
• Inversion symmetry of Josephson current as test of chiral domain wall motion in Sr${}_2$RuO${}_4$
• Chirality sensitive effect on surface states in chiral p-wave superconductors
• Josephson effect in a multi-orbital model for Sr${}_2$RuO${}_4$
• Theory of Josephson effect in chiral p-wave superconductor / diffusive normal metal / chiral p-wave superconductor junctions
• Observability of surface currents in p-wave superconductors
• Chern-Simons Superconductor
• Local impedance on a rough surface of a chiral $p$-wave superconductor
• Spin and Charge Currents in SNS Josephson Junction with f-wave Pairing Symmetry
• Tunneling conductance and local density of states in time-reversal symmetry breaking superconductors under the influence of an external magnetic field
• Electronic structure and spontaneous internal field around non-magnetic impurities in spin-triplet chiral p-wave superconductors
• Control of magnetism in singlet-triplet superconducting heterostructures
• Characterization of Sr2RuO4 Josephson junctions made of epitaxial films
• Transport Properties in Ferromagnetic Josephson Junction between Triplet Superconductors
• Unusual Superconducting Proximity Effect in Magnetically Doped Topological Josephson Junctions
• Bulk-boundary correspondence in Josephson Junctions
• Possible Electric-Field-Induced Superconducting States in Doped Silicene
• Doping-type-dependent pairing symmetry in predicted Ni-based high-$T_c$ superconductor La${}_2$Ni${}_2$Se${}_2$O${}_3$