Abstract
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 the 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.
Original language | English (US) |
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Article number | 062109 |
Journal | Applied Physics Letters |
Volume | 91 |
Issue number | 6 |
DOIs | |
State | Published - 2007 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)