Optical spin noise of a single hole spin localized in an (InGa)as quantum dot

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Dahbashi, R.; Hübner, J.; Berski, F.; Pierz, K.; Oestreich, M.: Optical spin noise of a single hole spin localized in an (InGa)as quantum dot. In: Physical Review Letters 112 (2014), Nr. 15, No. 156601. DOI: https://doi.org/10.1103/PhysRevLett.112.156601

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Sum total of downloads: 161




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Abstract: 
We advance spin noise spectroscopy to the ultimate limit of single spin detection. This technique enables the measurement of the spin dynamic of a single heavy hole localized in a flat (InGa)As quantum dot. Magnetic field and light intensity dependent studies reveal even at low magnetic fields a strong magnetic field dependence of the longitudinal heavy hole spin relaxation time with an extremely long T1 of ?180?s at 31 mT and 5 K. The wavelength dependence of the spin noise power discloses for finite light intensities an inhomogeneous single quantum dot spin noise spectrum which is explained by charge fluctuations in the direct neighborhood of the quantum dot. The charge fluctuations are corroborated by the distinct intensity dependence of the effective spin relaxation rate. © 2014 American Physical Society.
License of this version: Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden.
Document Type: Article
Publishing status: publishedVersion
Issue Date: 2014
Appears in Collections:Fakultät für Mathematik und Physik

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pos. country downloads
total perc.
1 image of flag of Germany Germany 117 72.67%
2 image of flag of United States United States 20 12.42%
3 image of flag of China China 10 6.21%
4 image of flag of France France 3 1.86%
5 image of flag of Canada Canada 3 1.86%
6 image of flag of No geo information available No geo information available 2 1.24%
7 image of flag of Taiwan Taiwan 1 0.62%
8 image of flag of Netherlands Netherlands 1 0.62%
9 image of flag of Japan Japan 1 0.62%
10 image of flag of Ireland Ireland 1 0.62%
    other countries 2 1.24%

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