Inversion of the exciton built-in dipole moment in In(Ga)As
quantum dots via nonlinear piezoelectric effect

J 2017

Inversion of the exciton built-in dipole moment in In(Ga)As quantum dots via nonlinear piezoelectric effect

ABERL, Johannes, Petr KLENOVSKÝ, Johannes S. WILDMANN, Javier MARTÍN-SÁNCHEZ, Thomas FROMHERZ et. al.

Základní údaje

Originální název

Inversion of the exciton built-in dipole moment in In(Ga)As quantum dots via nonlinear piezoelectric effect

Autoři

ABERL, Johannes (40 Rakousko), Petr KLENOVSKÝ (203 Česká republika, garant, domácí), Johannes S. WILDMANN (40 Rakousko), Javier MARTÍN-SÁNCHEZ (724 Španělsko), Thomas FROMHERZ (40 Rakousko), Eugenio ZALLO (380 Itálie), Josef HUMLÍČEK (203 Česká republika, domácí), Armando RASTELLI (380 Itálie) a Rinaldo TROTTA (380 Itálie)

Vydání

Physical Review B, COLLEGE PK, MD USA, AMER PHYSICAL SOC, 2017, 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: 3.813

Kód RIV

RIV/00216224:14310/17:00097198

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1103/PhysRevB.96.045414

UT WoS

000405364100006

Klíčová slova anglicky

piezoelectricity; quantum dot; strain tuning; NIP diode; electric dipole

Štítky

NZ, rivok

Změněno: 5. 4. 2018 15:28, Ing. Nicole Zrilić

Anotace

V originále

We show that anisotropic biaxial stress can be used to tune the built-in dipole moment of excitons confined in In(Ga)As quantum dots up to complete erasure of its magnitude and inversion of its sign. We demonstrate that this phenomenon is due to piezoelectricity. We present a model to calculate the applied stress, taking advantage of the so-called piezotronic effect, which produces significant changes in the current-voltage characteristics of the strained diode-membranes containing the quantum dots. Finally, self-consistent k.p calculations reveal that the experimental findings can be only accounted for by the nonlinear piezoelectric effect, whose importance in quantum dot physics has been theoretically recognized although it has proven difficult to single out experimentally.

Návaznosti

LQ1601, projekt VaV

Název: CEITEC 2020 (Akronym: CEITEC2020)

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

Citovat

ABERL, Johannes, Petr KLENOVSKÝ, Johannes S. WILDMANN, Javier MARTÍN-SÁNCHEZ, Thomas FROMHERZ, Eugenio ZALLO, Josef HUMLÍČEK, Armando RASTELLI a Rinaldo TROTTA. Inversion of the exciton built-in dipole moment in In(Ga)As quantum dots via nonlinear piezoelectric effect. Physical Review B. COLLEGE PK, MD USA: AMER PHYSICAL SOC, 2017, roč. 96, č. 4, s. nestránkováno, 6 s. ISSN 2469-9950. Dostupné z: https://dx.doi.org/10.1103/PhysRevB.96.045414.

@article{1385671,
   author = {Aberl, Johannes and Klenovský, Petr and Wildmann, Johannes S. and MartínandSánchez, Javier and Fromherz, Thomas and Zallo, Eugenio and Humlíček, Josef and Rastelli, Armando and Trotta, Rinaldo},
   article_location = {COLLEGE PK, MD USA},
   article_number = {4},
   doi = {http://dx.doi.org/10.1103/PhysRevB.96.045414},
   keywords = {piezoelectricity; quantum dot; strain tuning; NIP diode; electric dipole},
   language = {eng},
   issn = {2469-9950},
   journal = {Physical Review B},
   title = {Inversion of the exciton built-in dipole moment in In(Ga)As quantum dots via nonlinear piezoelectric effect},
   url = {https://journals.aps.org/prb/abstract/10.1103/PhysRevB.96.045414},
   volume = {96},
   year = {2017}
}

TY  - JOUR
ID  - 1385671
AU  - Aberl, Johannes - Klenovský, Petr - Wildmann, Johannes S. - Martín-Sánchez, Javier - Fromherz, Thomas - Zallo, Eugenio - Humlíček, Josef - Rastelli, Armando - Trotta, Rinaldo
PY  - 2017
TI  - Inversion of the exciton built-in dipole moment in In(Ga)As quantum dots via nonlinear piezoelectric effect
JF  - Physical Review B
VL  - 96
IS  - 4
SP  - nestránkováno
EP  - nestránkováno
PB  - AMER PHYSICAL SOC
SN  - 24699950
KW  - piezoelectricity
KW  - quantum dot
KW  - strain tuning
KW  - NIP diode
KW  - electric dipole
UR  - https://journals.aps.org/prb/abstract/10.1103/PhysRevB.96.045414
L2  - https://journals.aps.org/prb/abstract/10.1103/PhysRevB.96.045414
N2  - We show that anisotropic biaxial stress can be used to tune the built-in dipole moment of excitons confined in In(Ga)As quantum dots up to complete erasure of its magnitude and inversion of its sign. We demonstrate that this phenomenon is due to piezoelectricity. We present a model to calculate the applied stress, taking advantage of the so-called piezotronic effect, which produces significant changes in the current-voltage characteristics of the strained diode-membranes containing the quantum dots. Finally, self-consistent k.p calculations reveal that the experimental findings can be only accounted for by the nonlinear piezoelectric effect, whose importance in quantum dot physics has been theoretically recognized although it has proven difficult to single out experimentally.
ER  -

ABERL, Johannes, Petr KLENOVSKÝ, Johannes S. WILDMANN, Javier MARTÍN-SÁNCHEZ, Thomas FROMHERZ, Eugenio ZALLO, Josef HUMLÍČEK, Armando RASTELLI a Rinaldo TROTTA. Inversion of the exciton built-in dipole moment in In(Ga)As quantum dots via nonlinear piezoelectric effect. \textit{Physical Review B}. COLLEGE PK, MD USA: AMER PHYSICAL SOC, 2017, roč.~96, č.~4, s.~nestránkováno, 6 s. ISSN~2469-9950. Dostupné z: https://dx.doi.org/10.1103/PhysRevB.96.045414.

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