Evidence for spin-triplet superconducting correlations in metal-oxide heterostructures with non-collinear magnetization

Abstract

Heterostructures composed of ferromagnetic La0.7Sr0.3MnO3, ferromagnetic SrRuO3, and superconducting YBa2Cu3Ox were studied experimentally. Structures of composition Au/La0.7Sr0.3MnO3/SrRuO3/YBa2Cu3Ox were prepared by pulsed laser deposition, and their high quality was confirmed by X-ray diffraction and reflectometry. A non-collinear magnetic state of the heterostructures was revealed by means of SQUID magnetometry and polarized neutron reflectometry. We have further observed superconducting currents in mesa-structures fabricated by deposition of a second superconducting Nb layer on top of the heterostructure, followed by patterning with photolithography and ion-beam etching. Josephson effects observed in these mesa-structures can be explained by the penetration of a triplet component of the superconducting order parameter into the magnetic layers.

arXiv comment10 pages, 6 figures

References in corpus (21)

• Colossal Magnetoresistant Materials: The Key Role of Phase Separation
• Proximity effects in superconductor-ferromagnet heterostructures
• Odd Triplet Superconductivity and Related Phenomena in Superconductor-Ferromagnet Structures
• A spin triplet supercurrent through the half-metallic ferromagnet CrO2
• Long-range effects in superconductor-ferromagnet structures
• Observation of spin-triplet superconductivity in Co-based Josephson Junctions
• Long range triplet Josephson effect through a ferromagnetic trilayer
• Fully developed triplet proximity effect
• Superconducting phase coherent electron transport in proximity conical ferromagnets
• Magnetic Proximity Effect in Perovskite Superconductor/Ferromagnet Multilayers
• Optimization of spin-triplet supercurrent in ferromagnetic Josephson junctions
• Long range proximity effect in La2/3Ca1/3MnO3 (LCMO)/(100)YBa2Cu3O7-delta (YBCO) ferromagnet/superconductor bilayers: Evidence for induced triplet superconductivity in the ferromagnet
• Odd spin-triplet superconductivity in a multilayered superconductor-ferromagnet Josephson junction
• Josephson effect and spin-triplet pairing correlations in SF1F2S junctions
• Interference phenomena and long - range proximity effect in clean superconductor -- ferromagnet systems
• Superharmonic long-range triplet current in a diffusive Josephson junction
• Josephson current in diffusive multilayer superconductor/ferromagnet/superconductor junctions
• Magnetic proximity effects in V/Fe superconductor/ferromagnet single bilayer revealed by waveguide-enhanced polarized neutron reflectometry
• On the feasibility to study inverse proximity effect in a single S/F bilayer by Polarized Neutron Reflectometry
• Magnetic non-collinear neutron wave resonator
• Feasibility of study magnetic proximity effects in bilayer "superconductor/ferromagnet" using waveguide-enhanced Polarized Neutron Reflectometry

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• In situ transport characterization of magnetic states in Nb/Co superconductor/ferromagnet heterostructures
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