Controlling spin in an electronic interferometer with spin-active interfaces

Abstract

We consider electronic current transport through a ballistic one-dimensional quantum wire connected to two ferromagnetic leads. We study the effects of the spin-dependence of interfacial phase shifts (SDIPS) acquired by electrons upon scattering at the boundaries of the wire. The SDIPS produces a spin splitting of the wire resonant energies which is tunable with the gate voltage and the angle between the ferromagnetic polarizations. This property could be used for manipulating spins. In particular, it leads to a giant magnetoresistance effect with a sign tunable with the gate voltage and the magnetic field applied to the wire.

5 pages, 3 figures. to be published in Europhysics Letters

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Cited by in corpus (24)

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• Nanospintronics with carbon nanotubes
• Ferromagnetic proximity effect in F-QDot-S device
• Spin-dependent Quantum Interference in Single-Wall Carbon Nanotubes with Ferromagnetic Contacts
• Cavity QED with hybrid nanocircuits: from atomic-like physics to condensed matter phenomena
• Frequency-Dependent Current Noise through Quantum-Dot Spin Valves
• The Magneto-coulomb effect in spin valve devices
• Experimental realization of a silicon spin field-effect transistor
• Magnetoresistance of a quantum dot with spin-active interfaces
• Transport through a double quantum dot system with non-collinearly polarized leads
• Proximity Induced Vortices and Long-Range Triplet Supercurrents in Ferromagnetic Josephson Junctions and Spin Valves
• Spectroscopy and critical temperature of diffusive superconducting/ferromagnetic hybrid structures with spin-active interfaces
• Spin Controlled Coexistence of 0 and π States in SFSFS Josephson Junctions
• Conserved spin and orbital phase along carbon nanotubes connected with multiple ferromagnetic contacts
• Spin transport across carbon nanotube quantum dots
• Transport across a carbon nanotube quantum dot contacted with ferromagnetic leads: experiment and non-perturbative modeling
• Conductance and current noise of a superconductor/ferromagnet quantum point contact
• Theory of a Magnetically-Controlled Quantum-Dot Spin Transistor
• Exchange effects on electron transport through single-electron spin-valve transistors
• Tunable spin-polaron state in a singly clamped semiconducting carbon nanotube
• Impact of tunnel barrier strength on magnetoresistance in carbon nanotubes
• Multi-terminal spin-dependent transport in ballistic carbon nanotubes
• Gate-dependent spin-torque in a nanoconductor-based spin-valve
• Gate-voltage response of a one-dimensional ballistic spin valve without spin-orbit interaction