Asymmetric magnetic interference patterns in 0-pi Josephson junctions

Abstract

We examine the magnetic interference patterns of Josephson junctions with a region of 0- and of pi-phase shift. Such junctions have recently been realized as c-axis YBCO-Pb junctions with a single twin boundary in YBCO. We show that in general the junction generates self-fields which introduces an asymmetry in the critical current under reversal of the magnetic field. Numerical calculations of these asymmetries indicate they account well for the unexplained features observed in single twin boundary junctions.

4 pages, 3 figures

References in corpus (2)

• C-axis Josephson Tunneling Between YBCO and Pb: Direct Evidence for Mixed Order Parameter Symmetry in a High-T_c Superconductor
• Spontaneous Flux and Magnetic Interference Patterns in 0-pi Josephson Junctions

Cited by in corpus (2)

• Josephson interferometer in a ring topology as a symmetry prove of Sr_2RuO_4
• Intrinsic frustration effects in anisotropic superconductors