Drift and Diffusion of Spins Generated by the Spin Hall Effect
| Autor: | Arthur C. Gossard, David W. Steuerman, Nathaniel P. Stern, Shawn Mack, David D. Awschalom |
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| Rok vydání: | 2007 |
| Předmět: |
Physics
Condensed Matter - Materials Science Kerr effect Physics and Astronomy (miscellaneous) Spins Condensed matter physics Spin polarization Condensed Matter - Mesoscale and Nanoscale Physics Materials Science (cond-mat.mtrl-sci) FOS: Physical sciences Rotation Magnetic field Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Spin Hall effect Condensed Matter::Strongly Correlated Electrons Optical rotation Spin-½ |
| DOI: | 10.48550/arxiv.0706.4273 |
| Popis: | Electrically generated spin accumulation due to the spin Hall effect is imaged in n-GaAs channels using Kerr rotation microscopy, focusing on its spatial distribution and time-averaged behavior in a magnetic field. Spatially-resolved imaging reveals that spin accumulation observed in transverse arms develops due to longitudinal drift of spin polarization produced at the sample boundaries. One- and two-dimensional drift-diffusion modeling is used to explain these features, providing a more complete understanding of observations of spin accumulation and the spin Hall effect. Comment: 9 pages, 3 figures |
| Databáze: | OpenAIRE |
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