Geometric pi Josephson junction in d-wave superconducting thin films

Abstract

A novel way to realize a pi Josephson junction is proposed, based on a weak link in an unconventional d-wave superconductor with appropriately chosen boundary geometry. The critical current of such a junction is calculated from a fully selfconsistent solution of microscopic Eilenberger theory of superconductivity. The results clearly show, that a transition to a pi Josephson junction occurs for both low temperatures and small sizes of the geometry.

3 pages, 3 figures

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Cited by in corpus (9)

• Experimental evidence of a ϕ Josephson junction
• Josephson junction with magnetic-field tunable ground state
• Imaging of order parameter induced $\pi$ phase shifts in cuprate superconductors by low-temperature scanning electron microscopy
• Phase diagram of geometric d-wave superconductor Josephson junctions
• Magnonic $\phi$ Josephson junctions and synchronized precession
• Existence and stability analysis of finite 0-$\pi$-0 Josephson junctions
• Localized mode interactions in 0-pi Josephson junctions
• Effect of Transparency on the D-wave Josephson Junction
• Geometric pi Josephson junction: Current-phase relations and critical current