Theory of spin hydrodynamic generation

M. Matsuo, Y. Ohnuma, S. Maekawa

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

Spin-current generation by fluid motion is theoretically investigated. Based on quantum kinetic theory, the spin-diffusion equation coupled with fluid vorticity is derived. We show that spin currents are generated by the vorticity gradient in both laminar and turbulent flows and that the generated spin currents can be detected by the inverse spin Hall voltage measurements, which are predicted to be proportional to the flow velocity in a laminar flow. In contrast, the voltage in a turbulent flow is proportional to the square of the flow velocity. This study will pave the way to fluid spintronics.

Original languageEnglish
Article number020401
JournalPhysical Review B
Volume96
Issue number2
DOIs
Publication statusPublished - 2017 Jul 5

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Theory of spin hydrodynamic generation'. Together they form a unique fingerprint.

Cite this