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Resonant spin polarization and spin current in a two-dimensional electron gas

Duckheim, Mathias and Loss, Daniel. (2007) Resonant spin polarization and spin current in a two-dimensional electron gas. Physical Review B, Vol. 75, H. 20 , 201305, 4 S..

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Official URL: http://edoc.unibas.ch/dok/A5254624

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Abstract

We study the spin polarization and its associated spin-Hall current due to electric-dipole-induced spin resonance in disordered two-dimensional electron systems. We show that the disorder-induced damping of the resonant spin polarization can be strongly reduced by an optimal field configuration that exploits the interference between the Rashba and Dresselhaus spin-orbit interactions. This leads to a striking enhancement of the spin susceptibility while the spin-Hall current vanishes at the same time. We give an interpretation of the spin current in geometrical terms which are associated with the trajectories the polarization describes in spin space.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Theoretische Physik Mesoscopics (Loss)
UniBasel Contributors:Loss, Daniel
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:American Institute of Physics
ISSN:0163-1829
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:22 Mar 2012 14:25
Deposited On:22 Mar 2012 13:48

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