Gigahertz spin noise spectroscopy in n-doped bulk GaAs
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Original version
Müller, G.M.; Römer, M.; Hübner, J.; Oestreich, M.: Gigahertz spin noise spectroscopy in n-doped bulk GaAs. In: Physical Review B - Condensed Matter and Materials Physics 81 (2010), Nr. 12, No. 121202. DOI:
https://doi.org/10.1103/PhysRevB.81.121202
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To cite the version in the repository, please use this identifier:
https://doi.org/10.15488/2082
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Abstract:
We advance spin noise spectroscopy to an ultrafast tool to resolve high-frequency spin dynamics in semiconductors. The optical nondemolition experiment reveals the genuine origin of the inhomogeneous spin dephasing in n-doped GaAs wafers at densities at the metal-to-insulator transition. The measurements prove in conjunction with depth-resolved spin noise measurements that the broadening of the spin dephasing rate does not result from thermal fluctuations or spin-phonon interaction, as suggested previously, but from spatial g -factor variations. © 2010 The American Physical Society.
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Article
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publishedVersion
Publication date:
2010
DDC:
530 | Physik
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