Journal
PHYSICAL REVIEW B
Volume 105, Issue 2, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.105.L020409
Keywords
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Funding
- Research Council of Norway [240806, 262633]
- NV faculty at the Norwegian University of Science and Technology
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We theoretically study the effect of a rotating electric field on a diffusive nanowire and find an effect similar to spin pumping, resulting in a measurable spin-voltage along the axis of rotation.
We study theoretically the effect of a rotating electric field on a diffusive nanowire and find an effect that is analogous to spin pumping, which refers to the generation of spin through a rotating magnetic field. The electron spin couples to the electric field because the particle motion induces an effective magnetic field in its rest frame. In a diffusive system the velocity of the particle, and therefore also its effective magnetic field, rapidly and randomly changes direction. Nevertheless, we demonstrate analytically and via a physical argument why the combination of the two effects described above produces a finite magnetization along the axis of rotation. This manifests as a measurable spin-voltage in the range of tens of microvolts.
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