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Radii of Rydberg states of isolated silicon donors

Li, Juerong, Le, Nguyen H., Litvinenko, K., Clowes, S. K., Engelkamp, H., Pavlov, S. G., Hübers, H. -W. ., Shuman, V. B., Portsel, L. M., Lodygin, A. N. , Astrov, A., Abrosimov, N. V., Pidgeon, C. R., Fisher, A., Zeng, Zaiping, Niquet, Y. -M. and Murdin, B. N. (2018) Radii of Rydberg states of isolated silicon donors Physical Review B, 98, 085423. 085423-1 - 085423-8.

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We have performed a high field magneto-absorption spectroscopy on silicon doped with a variety of single and double donor species. The magnetic field provides access to an experimental magnetic length, and the quadratic Zeeman effect in particular may~be used to extract the wavefunction radius without reliance on previously determined effective mass parameters. We were therefore able to determine the limits of validity for the standard one-band anisotropic effective mass model. We also provide improved parameters and use them for an independent check on the accuracy of effective mass theory. Finally, we show that the optically accessible excited state wavefunctions have the attractive property that interactions with neighbours are far more forgiving of position errors than (say) the ground state.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
Le, Nguyen H.
Clowes, S.
Engelkamp, H.
Pavlov, S. G.
Hübers, H. -W. .
Shuman, V. B.
Portsel, L. M.
Lodygin, A. N.
Astrov, A.
Abrosimov, N. V.
Pidgeon, C. R.
Fisher, A.
Zeng, Zaiping
Niquet, Y. -M.
Murdin, B.
Date : 15 August 2018
Funders : Engineering and Physical Sciences Research Council (EPSRC)
DOI : 10.1103/PhysRevB.98.085423
Copyright Disclaimer : © 2018 American Physical Society
Depositing User : Clive Harris
Date Deposited : 26 Jul 2018 00:58
Last Modified : 04 Oct 2019 10:03

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