Inter-layer Josephson coupling in stripe-ordered superconducting cuprates

Abstract

Motivated by experiments on LBCO-1/8 which suggest that stripe order co-exists with two-dimensional pairing without inter-layer phase coherence over an extended range of temperatures, we determine the inter-layer Josephson coupling in the presence of stripe order. We employ a mean-field description of bond-centered stripes, with a zero-momentum superconducting condensate and alternating stripe directions pinned by the low-temperature tetragonal (LTT) lattice structure. We show that the Fermi-surface reconstruction arising from strong stripe order can suppress the Josephson coupling between adjacent layers by more than an order of magnitude.

4 pages, 4 figs

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• Breakdown of the universal Josephson relation in spin ordered cuprate superconductors
• Josephson lattice model for phase fluctuations of local pairs in copper-oxide superconductors
• Percolative Pathway to Stripe Order in KTaO3-Based Superconductivity