Spin polarization control by electric stirring: proposal for a spintronic device

TL;DR

This paper proposes a novel all-electric spintronic device that leverages the spin Hall and stirring effects to generate measurable spin polarization without magnetic fields or ferromagnetic components, suitable for standard semiconductors.

Contribution

It introduces a new device concept that combines spin Hall and stirring effects to control spin polarization purely electrically in a mesoscopic system.

Findings

Measurable spin polarization can be achieved electrically in a closed geometry.

The device does not require magnetic fields or ferromagnetic materials.

Implementation is feasible with standard semiconducting materials.

Abstract

We propose a spintronic device to generate spin polarization in a mesoscopic region by purely electric means. We show that the spin Hall effect in combination with the stirring effect are sufficient to induce measurable spin polarization in a closed geometry. Our device structure does not require the application of magnetic fields, external radiation or ferromagnetic leads, and can be implemented in standard semiconducting materials.