Theory of electron energy spectrum and Aharonov-Bohm effect in self-assembled Inx Ga1-x As quantum rings in GaAs

Fomin Vladimir; Devreese Josef T.

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FOMIN, Vladimir, , , , , DEVREESE, Josef T.. Theory of electron energy spectrum and Aharonov-Bohm effect in self-assembled Inx Ga1-x As quantum rings in GaAs. In: Physical Review B - Condensed Matter and Materials Physics, 2007, vol. 76, p. 0. ISSN 1098-0121. DOI: https://doi.org/10.1103/PhysRevB.76.235320

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Physical Review B - Condensed Matter and Materials Physics

Volumul 76 / 2007 / ISSN 1098-0121 /ISSNe 1550-235X

Theory of electron energy spectrum and Aharonov-Bohm effect in self-assembled Inx Ga1-x As quantum rings in GaAs

DOI:https://doi.org/10.1103/PhysRevB.76.235320

Pag. 0-0

Fomin Vladimir¹², ¹³⁴, ¹³, Devreese Josef T.¹², ², ²

¹ University of Antwerp,
² Eindhoven University of Technology,
³ Moldova State University,
⁴ Catholic University of Leuven (KU Leuven)

Disponibil în IBN: 23 iunie 2023

Rezumat

We analyze theoretically the electron energy spectrum and the magnetization of an electron in a strained Inx Ga1-x As GaAs self-assembled quantum ring (SAQR) with realistic parameters, determined from the cross-sectional scanning-tunneling microscopy characterization of that nanostructure. The SAQRs have an asymmetric indium-rich craterlike shape with a depression rather than an opening at the center. Although the real SAQR shape differs strongly from an idealized circular-symmetric open ring structure, the Aharonov-Bohm oscillations of the magnetization survive.

Cuvinte-cheie
Quantum Double, Gallium Arsenides, Ring

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