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.

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

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10302 Condensed matter physics

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

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

Abstract

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.

Links

LQ1601, research and development project

Name: CEITEC 2020 (Acronym: CEITEC2020)

Investor: Ministry of Education, Youth and Sports of the CR

8C18001, research and development project

Name: CMOS Compatible Single Photon Sources based on SiGe Quantum Dots (Acronym: CUSPIDOR)

Investor: Ministry of Education, Youth and Sports of the CR, QUANTERA

Citovat

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. Available from: https://dx.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 = {http://dx.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 and Armando RASTELLI. Single-particle-picture breakdown in laterally weakly confining GaAs quantum dots. \textit{Physical Review B}. American Physical Society, 2019, vol.~100, No~23, p.~1-9. ISSN~2469-9950. Available from: https://dx.doi.org/10.1103/PhysRevB.100.235425.

Detailed Information on Publication Record