Memory Effect and Triplet Pairing Generation in the Superconducting Exchange Biased Co/CoOx/Cu41Ni59/Nb/Cu41Ni59 Layered Heterostructure

Abstract

We fabricated a nanolayered hybrid superconductor-ferromagnet spin-valve structure, the resistive state of which depends on the preceding magnetic field polarity. The effect is based on a strong exchange bias (about -2 kOe) on a diluted ferromagnetic copper-nickel alloy and generation of a long range odd in frequency triplet pairing component. The difference of high and low resistance states at zero magnetic field is 90% of the normal state resistance for a transport current of 250 μA and still around 42% for 10 μA. Both logic states of the structure do not require biasing fields or currents in the idle mode.

9 pages, 4 figures, Accepted to Applied Physics Letters

References in corpus (9)

• Evidence for Triplet Superconductivity in a Superconductor-Ferromagnet Spin Valve
• Superconducting triplet spin valve
• Ferromagnetic Josephson switching device with high characteristic voltage
• Observation of the Triplet Spin-Valve Effect in a Superconductor-Ferromagnet Heterostructure
• Domain wall effects in ferromagnet-superconductor structures
• Proximity Effects in Conical-Ferromagnet/Superconductor bilayers
• Synergy of exchange bias with superconductivity in ferromagnetic-superconducting layered hybrids: the influence of in-plane and out-of-plane magnetic order on superconductivity
• Critical Temperature Oscillations and Reentrant Superconductivity due to the FFLO like State in F/S/F Trilayers
• Domain - wall - induced magnetoresistance in pseudo spin-valve/superconductor hybrid structures

Cited by in corpus (11)

• Beyond Moore's technologies: operation principles of a superconductor alternative
• Mechanism of generation of a Josephson phase shift by an Abrikosov vortex
• The effect of normal metal layers in ferromagnetic Josephson junctions
• New Reversal Mode in Exchange Coupled Antiferromagnetic/Ferromagnetic Disks: Distorted Viscous Vortex
• Word and bit line operation of a 1x1 μm2 superconducting vortex-based memory
• Influence of the FFLO-like State on the Upper Critical Field of a S/F Bilayer: Angular and Temperature Dependence
• YBa2Cu3O7/LaXMnO3 (X: Ca, Sr) based Superconductor/Ferromagnet/Superconductor junctions with memory functionality
• Proximity effect in [Nb(1.5nm)/Fe(x)]${}_{10}$/Nb(50nm) superconducting/ferromagnet heterostructures
• Chirality of Bloch domain walls in exchange biased CoO/Co bilayer seen by waveguide-enhanced neutron spin-flip scattering
• Superconducting spin valve effect in Fe/Si${}_3$N${}_4$/Pb/Si${}_3$N${}_4$/Fe heterostructures
• Gate-Tunable Superconducting Spin Valve in a van der Waals Ferromagnet/Superconductor/Ferromagnet Trilayer