HUBER, Daniel, Barbara Ursula LEHNER, Diana CSONTOSOVÁ, Marcus REINDL, Simon SCHULER, Saimon Filipe COVRE DA SILVA, Petr KLENOVSKÝ and Armando RASTELLI. Single-particle-picture breakdown in laterally weakly confining GaAs quantum dots. Physical Review B. American Physical Society, 2019, vol. 100, No 23, p. 1-9. ISSN 2469-9950. doi:10.1103/PhysRevB.100.235425.
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Basic information
Original name Single-particle-picture breakdown in laterally weakly confining GaAs quantum dots
Authors HUBER, Daniel (40 Austria), Barbara Ursula LEHNER (40 Austria), Diana CSONTOSOVÁ (703 Slovakia, belonging to the institution), Marcus REINDL (40 Austria), Simon SCHULER (40 Austria), Saimon Filipe COVRE DA SILVA (40 Austria), Petr KLENOVSKÝ (203 Czech Republic, guarantor, belonging to the institution) and Armando RASTELLI.
Edition Physical Review B, American Physical Society, 2019, 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: 3.575
RIV identification code RIV/00216224:14310/19:00111689
Organization unit Faculty of Science
Doi http://dx.doi.org/10.1103/PhysRevB.100.235425
UT WoS 000502781800003
Keywords (in Czech) kvantove tecky; magneticke pole; konfiguracni interakce
Keywords in English quantum dots; magnetic field; configuration interaction
Tags rivok
Tags International impact, Reviewed
Changed by Changed by: Mgr. Marie Šípková, DiS., učo 437722. Changed: 26/3/2020 17:09.
Abstract
We present a detailed investigation of different excitonic states weakly confined in single GaAs/AlGaAs quantum dots obtained by the Al droplet-etching method. For our analysis we make use of temperature-, polarization-, and magnetic-field-dependent u-photoluminescence measurements, which allow us to identify different excited states of the quantum dot system. Besides that, we present a comprehensive analysis of g-factors and diamagnetic coefficients of charged and neutral excitonic states in Voigt and Faraday configuration. Supported by theoretical calculations by the configuration-interaction method, we show that the widely used single-particle Zeeman Hamiltonian cannot be used to extract reliable values of the g-factors of the constituent particles from excitonic transition measurements.
Links
LQ1601, research and development projectName: CEITEC 2020 (Acronym: CEITEC2020)
Investor: Ministry of Education, Youth and Sports of the CR, National Feasibility Programme II
8C18001, research and development projectName: CMOS Compatible Single Photon Sources based on SiGe Quantum Dots (Acronym: CUSPIDOR)
Investor: Ministry of Education, Youth and Sports of the CR, ERA-NET, QUANTERA
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