Evidence for Crossed Andreev Reflections in bilayers of (100)YBCO and the itinerant ferromagnet SrRuO3

Abstract

Scanning tunneling spectroscopy measurements on thin epitaxial SrRuO3/(100)YBCO ferromagnet/superconductor bilayers, reveal localized regions in which the superconductor order parameter penetrates the ferromagnet to more than 26 nm, an order of magnitude larger than the coherence length in the ferromagnetic layer. These regions consist of narrow (< 10 nm) and long strips, separated by at least 200 nm, consistent with the known magnetic domain wall structure in SrRuO3. We attributed this behavior to Crossed Andreev Reflections, taking place in the vicinity of the magnetic domain walls.

submitted to PRL

References in corpus (3)

• Evidence for crossed Andreev reflection in superconductor-ferromagnet hybrid structures
• Andreev conductance of a domain wall
• Proximity effect in ferromagnet-superconductor hybrid structures: role of the pairing symmetry

Cited by in corpus (9)

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• Efficient current-induced domain-wall displacement SrRuO3
• Electrically controlled crossed Andreev reflection in two-dimensional antiferromagnets
• Proximity effect and its enhancement by ferromagnetism in high-temperature superconductor-ferromagnet structures
• Materials challenges for SrRuO3: from conventional to quantum electronics
• Ferromagnetic SrRuO3 thin-film deposition on a spin-triplet superconductor Sr2RuO4 with highly conducting interface
• Long range crossed Andreev reflections in high Tc superconductors
• Penetration of Andreev bound states into the ferromagnet in a SrRuO${}_3$/(110)YBa${}_2$Cu${}_3$O${}_{7-\delta }$ bilayer: a scanning tunneling spectroscopy study
• Interface effects in d-wave superconductor-ferromagnet junctions