Journal Article

PreJuSER-15421

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Two-Dimensional Optical Control of Electron Spin Orientation by Linearly Polarized Light in InGaAs

Schmalbuch, K. ; Göbbels, S. ; Schäfers, P. ; Rodenbücher, C. ; Schlammes, P. ; Schäpers, T.FZJ* ; Lepsa, M.FZJ* ; Güntherodt, G. ; Beschoten, B.

2010
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/7293  doi:10.1103/PhysRevLett.105.246603

Abstract: Optical absorption of circularly polarized light is well known to yield an electron spin polarization in direct band gap semiconductors. We demonstrate that electron spins can even be generated with high efficiency by absorption of linearly polarized light in InxGa1-xAs. By changing the incident linear polarization direction we can selectively excite spins in both polar and transverse directions. These directions can be identified by the phase during spin precession using time-resolved Faraday rotation. We show that the spin orientations do not depend on the crystal axes suggesting an extrinsic excitation mechanism.

Keyword(s): J

Note: This work was supported by DFG through FOR 912.

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Contributing Institute(s):

1. Halbleiter-Nanoelektronik (PGI-9)
2. Jülich-Aachen Research Alliance - Fundamentals of Future Information Technology (JARA-FIT)

Research Program(s):

1. Grundlagen für zukünftige Informationstechnologien (P42)

Appears in the scientific report 2010
Notes: Nachtrag

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