Hanle effect near boundaries: Diffusion-induced lineshape inhomogeneity

Autor:	Hans-Andreas Engel
Rok vydání:	2008
Předmět:	Physics Hanle effect Condensed matter physics Spin polarization Spintronics Spins Condensed Matter Physics Electronic Optical and Magnetic Materials Magnetic field Precession Spin Hall effect Astrophysics::Solar and Stellar Astrophysics Condensed Matter::Strongly Correlated Electrons Spin-½
Zdroj:	Physical Review B. 77
ISSN:	1550-235X 1098-0121
DOI:	10.1103/physrevb.77.125302
Popis:	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 homogenous.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ebfe09d2d1d0ccd8a7b604d2aa9787d1 https://doi.org/10.1103/physrevb.77.125302 Zobrazit plný text záznamu