CSONTOSOVÁ, Diana and Petr KLENOVSKÝ. Theory of magneto-optical properties of neutral and charged excitons in GaAs/AlGaAs quantum dots. Physical Review B. American Physical Society, 2020, vol. 102, No 12, p. "125412-1"-"125412-15", 15 pp. ISSN 2469-9950. doi:10.1103/PhysRevB.102.125412.
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Basic information
Original name Theory of magneto-optical properties of neutral and charged excitons in GaAs/AlGaAs quantum dots
Authors CSONTOSOVÁ, Diana (703 Slovakia, belonging to the institution) and Petr KLENOVSKÝ (203 Czech Republic, guarantor, belonging to the institution).
Edition Physical Review B, American Physical Society, 2020, 2469-9950.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10302 Condensed matter physics
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
WWW URL
Impact factor Impact factor: 4.036
RIV identification code RIV/00216224:14310/20:00116371
Organization unit Faculty of Science
Doi http://dx.doi.org/10.1103/PhysRevB.102.125412
UT WoS 000566891800013
Keywords in English Electronic structure; Excitons; Magnetism; Quasiparticles & collective excitations; Spin-orbit coupling
Tags rivok
Tags International impact, Reviewed
Changed by Changed by: Mgr. Marie Šípková, DiS., učo 437722. Changed: 25/1/2021 17:08.
Abstract
Detailed theoretical study of the magneto-optical properties of weakly confining GaAs/AlGaAs quantum dots is provided. We focus on the diamagnetic coefficient and the g factor of the neutral and the charged excitonic states, respectively, and their evolution with various dot sizes for the magnetic fields applied along the [001] direction. For the calculations we utilize the combination of k . p and the configuration interaction methods. We decompose the theory into four levels of precision, i.e., (i) single-particle electron and hole states, (ii) noninteracting electron-hole pair, (iii) electron-hole pair constructed from the ground state of both quasiparticles and interacting via the Coulomb interaction (i.e., with minimal amount of correlation), and (iv) that including the effect of correlation. The aforementioned approach allows us to pinpoint the dominant influence of various single-particle and multiparticle effects on the studied magneto-optical properties, allowing the characterization of experiments using models which are as simple as possible, yet retaining the detailed physical picture.
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