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Landau-level quantization of the yellow excitons in cuprous oxide

DOI: 10.21883/FTT.2018.08.46252.20Gr

Переводная версия: 10.1134/S1063783418080103

Heckotter J.¹, Thewes J.¹, Frohlich D.¹, Abmann M.¹, Bayer M.^1,2

¹Experimentelle Physik 2, Technische Universität Dortmund, Dortmund, Germany

²Ioffe Institute, Russian Academy of Sciences, St. Petersburg, Russia Ioffe Institute, St. Petersburg, Russia

Email: manfred.bayer@tu-dortmund.de

Выставление онлайн: 20 июля 2018 г.

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Lately, the yellow series of P-excitons in cuprous oxide could be resolved up to the principal quantum number n=25. Adding a magnetic field, leads to additional confinement normal to the field. Thereby, the transition associated with the exciton n is transformed into the transition between the electron and hole Landau levels with quantum number n, once the associated magnetic length becomes smaller than the related exciton Bohr radius. The magnetic field of this transition scales roughly as n^-3. As a consequence of the extended exciton series, we are able to observe Landau level transitions with unprecedented high quantum numbers of more than 75. Acknowledgements. We gratefully acknowledge the support of this project by the Deutsche Forschungsgemeinschaft in the frame of the ICRC TRR 160 (project A1) and the project AS 459/1-3. MB also acknowledges support by the RF Government Grant No. 14.Z50.31.0021.

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