Oblique Hanle effect in semiconductor spin transport devices

Jing Li, Biqin Huang, Ian Appelbaum
2008 Applied Physics Letters  
Spin precession and dephasing ("Hanle effect") provides an unambiguous means to establish the presence of spin transport in semiconductors. We compare theoretical modeling with experimental data from drift-dominated silicon spin-transport devices, illustrating the non-trivial consequences of employing oblique magnetic fields (due to misalignment or intentional, fixed in-plane field components) to measure the effects of spin precession. Model results are also calculated for Hanle measurements
more » ... nle measurements under conditions of diffusion-dominated transport, revealing an expected Hanle peak-widening effect induced by the presence of fixed in-plane magnetic bias fields.
doi:10.1063/1.2907497 fatcat:6siwc5bxkvcvpejhsponnaztfy