Single-particle-picture breakdown in laterally weakly confining
GaAs quantum dots

J 2019

Single-particle-picture breakdown in laterally weakly confining GaAs quantum dots

HUBER, Daniel; Barbara Ursula LEHNER; Diana CSONTOSOVÁ; Marcus REINDL; Simon SCHULER et al.

Základní údaje

Originální název

Single-particle-picture breakdown in laterally weakly confining GaAs quantum dots

Autoři

HUBER, Daniel; Barbara Ursula LEHNER; Diana CSONTOSOVÁ; Marcus REINDL; Simon SCHULER; Saimon Filipe COVRE DA SILVA; Petr KLENOVSKÝ a Armando RASTELLI

Vydání

Physical Review B, American Physical Society, 2019, 2469-9950

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10302 Condensed matter physics

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 3.575

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/19:00111689

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova česky

kvantove tecky; magneticke pole; konfiguracni interakce

Klíčová slova anglicky

quantum dots; magnetic field; configuration interaction

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 26. 3. 2020 17:09, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

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.

Návaznosti

LQ1601, projekt VaV

Název: CEITEC 2020 (Akronym: CEITEC2020)

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, CEITEC 2020

8C18001, projekt VaV

Název: CMOS Compatible Single Photon Sources based on SiGe Quantum Dots (Akronym: CUSPIDOR)

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, CMOS Compatible Single Photon Sources based on SiGe Quantum Dots, QUANTERA: Kvantové informační a komunikační vědy a technologie

Citovat

HUBER, Daniel; Barbara Ursula LEHNER; Diana CSONTOSOVÁ; Marcus REINDL; Simon SCHULER; Saimon Filipe COVRE DA SILVA; Petr KLENOVSKÝ a Armando RASTELLI. Single-particle-picture breakdown in laterally weakly confining GaAs quantum dots. Physical Review B. American Physical Society, 2019, roč. 100, č. 23, s. 1-9. ISSN 2469-9950. Dostupné z: https://doi.org/10.1103/PhysRevB.100.235425.

@article{1591716,
   author = {Huber, Daniel and Lehner, Barbara Ursula and Csontosová, Diana and Reindl, Marcus and Schuler, Simon and Covre da Silva, Saimon Filipe and Klenovský, Petr and Rastelli, Armando},
   article_number = {23},
   doi = {https://doi.org/10.1103/PhysRevB.100.235425},
   keywords = {quantum dots; magnetic field; configuration interaction},
   language = {eng},
   issn = {2469-9950},
   journal = {Physical Review B},
   title = {Single-particle-picture breakdown in laterally weakly confining GaAs quantum dots},
   url = {https://journals.aps.org/prb/abstract/10.1103/PhysRevB.100.235425},
   volume = {100},
   year = {2019}
}

TY  - JOUR
ID  - 1591716
AU  - Huber, Daniel - Lehner, Barbara Ursula - Csontosová, Diana - Reindl, Marcus - Schuler, Simon - Covre da Silva, Saimon Filipe - Klenovský, Petr - Rastelli, Armando
PY  - 2019
TI  - Single-particle-picture breakdown in laterally weakly confining GaAs quantum dots
JF  - Physical Review B
VL  - 100
IS  - 23
SP  - 1-9
EP  - 1-9
PB  - American Physical Society
SN  - 24699950
KW  - quantum dots
KW  - magnetic field
KW  - configuration interaction
UR  - https://journals.aps.org/prb/abstract/10.1103/PhysRevB.100.235425
L2  - https://journals.aps.org/prb/abstract/10.1103/PhysRevB.100.235425
N2  - 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.
ER  -

HUBER, Daniel; Barbara Ursula LEHNER; Diana CSONTOSOVÁ; Marcus REINDL; Simon SCHULER; Saimon Filipe COVRE DA SILVA; Petr KLENOVSKÝ a Armando RASTELLI. Single-particle-picture breakdown in laterally weakly confining GaAs quantum dots. \textit{Physical Review B}. American Physical Society, 2019, roč.~100, č.~23, s.~1-9. ISSN~2469-9950. Dostupné z: https://doi.org/10.1103/PhysRevB.100.235425.

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