Electric field induced tuning of electronic correlation in
weakly confining quantum dots

J 2021

Electric field induced tuning of electronic correlation in weakly confining quantum dots

HUANG, Huiying; Diana CSONTOSOVÁ; Santanu MANNA; Yongheng HUO; Rinaldo TROTTA et. al.

Basic information

Original name

Electric field induced tuning of electronic correlation in weakly confining quantum dots

Authors

HUANG, Huiying; Diana CSONTOSOVÁ (703 Slovakia, belonging to the institution); Santanu MANNA; Yongheng HUO; Rinaldo TROTTA (380 Italy); Armando RASTELLI and Petr KLENOVSKÝ (203 Czech Republic, guarantor, belonging to the institution)

Edition

Physical Review B, American Physical Society, 2021, 2469-9950

Other information

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

References:

URL

Impact factor

Impact factor: 3.908

RIV identification code

RIV/00216224:14310/21:00122509

Organization unit

Faculty of Science

DOI

https://doi.org/10.1103/PhysRevB.104.165401

UT WoS

000705623300003

EID Scopus

2-s2.0-85116821776

Keywords (in Czech)

elektronicka korelace; kvantove tecky; slabe vazane systemy; elektricke pole; Starkuv posuv; michani valencnich pasu

Keywords in English

electric correlation; quatnum dots; weakly confined systems; electric field; Stark shift; valence band mixing

Abstract

In the original language

We conduct a combined experimental and theoretical study of the quantum confined Stark effect in GaAs/AlGaAs quantum dots obtained with the local droplet etching method. In the experiment, we probe the permanent electric dipole and polarizability of neutral and positively charged excitons weakly confined in GaAs quantum dots by measuring their light emission under the influence of a variable electric field applied along the growth direction. Calculations based on the configuration-interaction method show excellent quantitative agreement with the experiment and allow us to elucidate the role of Coulomb interactions among the confined particles and—even more importantly—of electronic correlation effects on the Stark shifts. Moreover, we show how the electric field alters properties such as built-in dipole, binding energy, and heavy-light hole mixing of multiparticle complexes in weakly confining systems, underlining the deficiencies of commonly used models for the quantum confined Stark effect.

Links

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

Cite

HUANG, Huiying; Diana CSONTOSOVÁ; Santanu MANNA; Yongheng HUO; Rinaldo TROTTA; Armando RASTELLI and Petr KLENOVSKÝ. Electric field induced tuning of electronic correlation in weakly confining quantum dots. Physical Review B. American Physical Society, 2021, vol. 104, No 16, p. 165401-165411. ISSN 2469-9950. Available from: https://doi.org/10.1103/PhysRevB.104.165401.

@article{1795811,
   author = {Huang, Huiying and Csontosová, Diana and Manna, Santanu and Huo, Yongheng and Trotta, Rinaldo and Rastelli, Armando and Klenovský, Petr},
   article_number = {16},
   doi = {https://doi.org/10.1103/PhysRevB.104.165401},
   keywords = {electric correlation; quatnum dots; weakly confined systems; electric field; Stark shift; valence band mixing},
   language = {eng},
   issn = {2469-9950},
   journal = {Physical Review B},
   title = {Electric field induced tuning of electronic correlation in weakly confining quantum dots},
   url = {https://doi.org/10.1103/PhysRevB.104.165401},
   volume = {104},
   year = {2021}
}

TY  - JOUR
ID  - 1795811
AU  - Huang, Huiying - Csontosová, Diana - Manna, Santanu - Huo, Yongheng - Trotta, Rinaldo - Rastelli, Armando - Klenovský, Petr
PY  - 2021
TI  - Electric field induced tuning of electronic correlation in weakly confining quantum dots
JF  - Physical Review B
VL  - 104
IS  - 16
SP  - 165401
EP  - 165401
PB  - American Physical Society
SN  - 24699950
KW  - electric correlation
KW  - quatnum dots
KW  - weakly confined systems
KW  - electric field
KW  - Stark shift
KW  - valence band mixing
UR  - https://doi.org/10.1103/PhysRevB.104.165401
N2  - We conduct a combined experimental and theoretical study of the quantum confined Stark effect in GaAs/AlGaAs quantum dots obtained with the local droplet etching method. In the experiment, we probe the permanent electric dipole and polarizability of neutral and positively charged excitons weakly confined in GaAs quantum dots by measuring their light emission under the influence of a variable electric field applied along the growth direction. Calculations based on the configuration-interaction method show excellent quantitative agreement with the experiment and allow us to elucidate the role of Coulomb interactions among the confined particles and—even more importantly—of electronic correlation effects on the Stark shifts. Moreover, we show how the electric field alters properties such as built-in dipole, binding energy, and heavy-light hole mixing of multiparticle complexes in weakly confining systems, underlining the deficiencies of commonly used models for the quantum confined Stark effect.
ER  -

HUANG, Huiying; Diana CSONTOSOVÁ; Santanu MANNA; Yongheng HUO; Rinaldo TROTTA; Armando RASTELLI and Petr KLENOVSKÝ. Electric field induced tuning of electronic correlation in weakly confining quantum dots. \textit{Physical Review B}. American Physical Society, 2021, vol.~104, No~16, p.~165401-165411. ISSN~2469-9950. Available from: https://doi.org/10.1103/PhysRevB.104.165401.

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