Experimental Spin Ratchet

Abstract

Spintronics relies on the ability to transport and utilize the spin properties of an electron rather than its charge. We describe a spin rachet at the single-electron level that produces spin currents with no net bias or charge transport. Our device is based on the ground state energetics of a single electron transistor comprising a superconducting island connected to normal leads via tunnel barriers with different resistances that break spatial symmetry. We demonstrate spin transport and quantify the spin ratchet efficiency using ferromagnetic leads with known spin polarization. Our results are modeled theoretically and provide a robust route to the generation and manipulation of pure spin currents.

24 pages, 7 figures (includes supplementary material)

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Cited by in corpus (31)

• Quantum transport in Rashba spin-orbit materials: A review
• Dynamical energy transfer in ac driven quantum systems
• Magnon-drag thermopile
• Hamiltonian Simulation with Optimal Sample Complexity
• Classical ratchet effects in heterostructures with a lateral periodic potential
• Cotunneling drag effect in Coulomb-coupled quantum dots
• Skyrmion ratchet propagation: Utilizing the skyrmion Hall effect in AC racetrack storage devices
• Hidden symmetries, instabilities, and current suppression in Brownian ratchets
• Autonomous quantum absorption refrigerators
• SQUID ratchet: Statistics of transitions in dynamical localization
• Brownian ratchets: How stronger thermal noise can reduce diffusion
• Non-monotonic temperature dependence of chaos-assisted diffusion in driven periodic systems
• Time-shift invariance determines the functional shape of the current in dissipative rocking ratchets
• Plasmonic Brownian ratchet
• Quantum Floquet anomalous Hall states and quantized ratchet effect in one-dimensional dimer chain driven by two ac electric fields
• Topologically protected superconducting ratchet effect generated by spin-ice nanomagnets
• Time resolved heat exchange in driven quantum systems
• Magnetic quantum ratchet effect in Si-MOSFETs
• Spin-dependent current through a quantum dot from spin-polarized non-equilibrium quantum Hall edge channels
• Phonon-induced quantum ratchet in the exciton spin dynamics in diluted magnetic semiconductors in a magnetic field
• Terahertz spin ratchet effect in magnetic metamaterials
• Dissipation engineered directional filter for quantum ratchets
• Clocked single-spin source based on a spin-split superconductor
• Directed motion of doublons and holes in periodically driven Mott insulators
• Spin wave and spin flip in hexagonal LuMnO3 single crystal
• The transport phenomenon of inertia Brownian particles in a periodic potential with non-Gaussian noise
• Tailored particle current in an optical lattice by a weak time-symmetric harmonic potential
• Temporal evolution of fluxes in driven quantum dots
• Spin-orbit torque on nuclear spins exerted by a spin accumulation via hyperfine interactions
• Experimental demonstration of photonic quantum ratchet
• Archimedean Screw in Driven Chiral Magnets