Journal
PHYSICAL REVIEW B
Volume 77, Issue 12, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.77.125302
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The Hanle effect describes suppression of spin polarization due to precession in a magnetic field. This is a standard spintronics tool and it gives access to the spin lifetime of samples in which spins are generated homogeneously. We examine the Hanle effect when spins are generated at a boundary of a diffusive sample by the extrinsic spin Hall effect. We show that the Hanle curve is spatially dependent and that the apparent spin lifetime, given by its inverse half- width, is shorter near the boundary even if the spin relaxation rate is homogeneous.
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