Spin noise spectroscopy of donor-bound electrons in ZnO

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Horn, H.; Balocchi, A.; Marie, X.; Bakin, A.; Waag, A. et al.: Spin noise spectroscopy of donor-bound electrons in ZnO. In: Physical Review B - Condensed Matter and Materials Physics 87 (2013), Nr. 4, No. 45312. DOI: https://doi.org/10.1103/PhysRevB.87.045312

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Abstract: 
We investigate the intrinsic spin dynamics of electrons bound to Al impurities in bulk ZnO by optical spin noise spectroscopy. Spin noise spectroscopy enables us to investigate the longitudinal and transverse spin relaxation time with respect to nuclear and external magnetic fields in a single spectrum. On one hand, the spin dynamic is dominated by the intrinsic hyperfine interaction with the nuclear spins of the naturally occurring 67Zn isotope. We measure a typical spin dephasing time of 23 ns, in agreement with the expected theoretical values. On the other hand, we measure a third, very high spin dephasing rate which is attributed to a high defect density of the investigated ZnO material. Measurements of the spin dynamics under the influence of transverse as well as longitudinal external magnetic fields unambiguously reveal the intriguing connections of the electron spin with its nuclear and structural environment. © 2013 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: 2013
Appears in Collections:Fakultät für Mathematik und Physik

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1 image of flag of Germany Germany 79 91.86%
2 image of flag of China China 3 3.49%
3 image of flag of United States United States 1 1.16%
4 image of flag of Sweden Sweden 1 1.16%
5 image of flag of Canada Canada 1 1.16%
6 image of flag of Austria Austria 1 1.16%

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