Purely electric spin pumping in one-dimension

Abstract

We show theoretically that a simple one dimensional system (such as metallic wire) can display quantum spin pumping possibly without pushing any charge. It is achieved by applying two slowly varying orthogonal gate electric fields on different sections of the wire, thereby generating local spin-orbit (Rashba) terms such that unitary transformations at different places do not commute. This construction is a unique manifestation of a spin-orbit observable effect in purely one dimensional systems with potentials respecting time-reversal symmetry.

7.5 pages, 1 figure

References in corpus (4)

• Time Reversal Polarization and a Z_2 Adiabatic Spin Pump
• Adiabatic spin pumping through a quantum dot with a single orbital level
• Spin filtering by a periodic nanospintronic devices
• Spin filtering due to quantum interference in periodic mesoscopic networks

Cited by in corpus (7)

• Generation of pure bulk valley current in graphene
• Shot noise suppression in InGaAs/InGaAsP quantum channels
• DC spin generation by junctions with AC driven spin-orbit interaction
• Photovoltaic effect generated by spin-orbit interactions
• Controlling spin without magnetic fields -- the Bloch-Rashba rotator
• Charge transport by modulating spin-orbit gauge fields for quasi-onedimensional holes
• Dynamical Spin-Orbit-Based Spin Transistor