1. Piezo-electric fields and state-filling photo-luminescence in natural InP/GaInP2 Wigner molecule structures.
- Author
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Mintairov, A. M., Ankundinov, A. V., Kalyuzhnyy, N. A., Lebedev, D. V., Mintairov, S. A., Pavlov, N. V., Galimov, A. I., Rakhlin, M. V., Salii, R. A., Toropov, A. A., Vlasov, A. S., Barettin, D., der Maur, M. Auf, and Blundell, S. A.
- Subjects
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ANDERSON localization , *QUANTUM gates , *COULOMB blockade , *SURFACE potential , *QUANTUM dots , *LUMINESCENCE , *KELVIN probe force microscopy - Abstract
We used the measurements of the photo-luminescence spectra vs photon pumping and Coulomb blockade charge tuning together with Kelvin probe microscopy to study piezo-electric fields in self-organized InP/GaInP2 quantum dots (QDs) having a strong Wigner localization regime. These exciton/electron state-filling measurements together with the surface potential imaging and the band structure calculations demonstrate a piezo-electric doping and type-I optical transitions induced in these dots by an atomic ordering (AO) of GaInP2. Our results clarify a critical role of AO in the formation of natural Wigner and anyon molecules and represent an important step for realization of the topological quantum gates using these QDs. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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