Anti-Poiseuille flow by spin Hall effect
Junji Fujimoto, Wataru Koshibae, Sadamichi Maekawa, Derek Abbott · 2024
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Description
Junji Fujimoto and co-authors find a backwards flow in spin Hall systems in a 2024 paper. When electrons flow like a fluid, their speed in a strip peaks at the center and fades at the edges, a shape called Poiseuille flow. Spin Hall systems couple charge and spin currents, which changes that picture.
Even without electron clashes, a viscous fluid forms there with speed lowest at the center and highest at the edges, an anti Poiseuille flow. Spin buildup at the walls ties to swirl in the current. In a strip with a cavity, that spin pile up near the rim can seed a magnetic skyrmion in a film beside it.
Catalog record
| CREATOR | Junji Fujimoto, Wataru Koshibae, Sadamichi Maekawa, Derek Abbott |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 28 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |