Exciton-light coupling in (In,Ga)As/GaAs quantum wells in a longitudinal magnetic field

Переведенное название: Свето-экситонное взаимодействие в квантовых ямах (In,Ga)As/GaAs в продольном магнитном поле

P. S. Grigoryev, I. V. Ignatiev, V. G. Davydov, Yu P. Efimov, S. A. Eliseev, V. A. Lovtcius, P. Yu Shapochkin, M. Bayer

Результат исследований: Научные публикации в периодических изданияхстатья

2 Цитирования (Scopus)
10 Downloads (Pure)

Выдержка

We report on the observation of a significant increase of the radiative decay rates for exciton transitions in a wide (In,Ga)As/GaAs quantum well (L=95 nm) in magnetic fields up to 6 T applied along the growth axis of the heterostructure. The absolute values of the radiative decay rates are obtained from a quantitative analysis of resonant features in the experimentally measured reflectance spectra in the range of the optical transitions to the quantum-confined exciton states. High crystalline quality of the heterostructure allows us to observe the ground and several excited exciton transitions with the nonradiative broadening comparable to the radiative one. We employ a numerical procedure appropriate for the studied wide quantum well to model the increase of the radiative decay rate in magnetic field. The results of the modeling agree well with the experimental data.

Язык оригиналаанглийский
Номер статьи155404
Страницы (с-по)1-9
Число страниц9
ЖурналPhysical Review B - Condensed Matter and Materials Physics
Том96
Номер выпуска15
DOI
СостояниеОпубликовано - 3 окт 2017

Отпечаток

Excitons
Semiconductor quantum wells
decay rates
excitons
quantum wells
Magnetic fields
Electron transitions
Heterojunctions
magnetic fields
Optical transitions
optical transition
quantitative analysis
Crystalline materials
reflectance
Chemical analysis
LDS 751
gallium arsenide

Предметные области Scopus

  • Электроника, оптика и магнитные материалы
  • Физика конденсатов

Ключевые слова

  • Экситоны, магнитное поле, свето-экситонное взамодействие, квантовая яма

Цитировать

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abstract = "We report on the observation of a significant increase of the radiative decay rates for exciton transitions in a wide (In,Ga)As/GaAs quantum well (L=95 nm) in magnetic fields up to 6 T applied along the growth axis of the heterostructure. The absolute values of the radiative decay rates are obtained from a quantitative analysis of resonant features in the experimentally measured reflectance spectra in the range of the optical transitions to the quantum-confined exciton states. High crystalline quality of the heterostructure allows us to observe the ground and several excited exciton transitions with the nonradiative broadening comparable to the radiative one. We employ a numerical procedure appropriate for the studied wide quantum well to model the increase of the radiative decay rate in magnetic field. The results of the modeling agree well with the experimental data.",
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Exciton-light coupling in (In,Ga)As/GaAs quantum wells in a longitudinal magnetic field. / Grigoryev, P. S.; Ignatiev, I. V.; Davydov, V. G.; Efimov, Yu P.; Eliseev, S. A.; Lovtcius, V. A.; Shapochkin, P. Yu; Bayer, M.

В: Physical Review B - Condensed Matter and Materials Physics, Том 96, № 15, 155404, 03.10.2017, стр. 1-9.

Результат исследований: Научные публикации в периодических изданияхстатья

TY - JOUR

T1 - Exciton-light coupling in (In,Ga)As/GaAs quantum wells in a longitudinal magnetic field

AU - Grigoryev, P. S.

AU - Ignatiev, I. V.

AU - Davydov, V. G.

AU - Efimov, Yu P.

AU - Eliseev, S. A.

AU - Lovtcius, V. A.

AU - Shapochkin, P. Yu

AU - Bayer, M.

N1 - 53 ссылки

PY - 2017/10/3

Y1 - 2017/10/3

N2 - We report on the observation of a significant increase of the radiative decay rates for exciton transitions in a wide (In,Ga)As/GaAs quantum well (L=95 nm) in magnetic fields up to 6 T applied along the growth axis of the heterostructure. The absolute values of the radiative decay rates are obtained from a quantitative analysis of resonant features in the experimentally measured reflectance spectra in the range of the optical transitions to the quantum-confined exciton states. High crystalline quality of the heterostructure allows us to observe the ground and several excited exciton transitions with the nonradiative broadening comparable to the radiative one. We employ a numerical procedure appropriate for the studied wide quantum well to model the increase of the radiative decay rate in magnetic field. The results of the modeling agree well with the experimental data.

AB - We report on the observation of a significant increase of the radiative decay rates for exciton transitions in a wide (In,Ga)As/GaAs quantum well (L=95 nm) in magnetic fields up to 6 T applied along the growth axis of the heterostructure. The absolute values of the radiative decay rates are obtained from a quantitative analysis of resonant features in the experimentally measured reflectance spectra in the range of the optical transitions to the quantum-confined exciton states. High crystalline quality of the heterostructure allows us to observe the ground and several excited exciton transitions with the nonradiative broadening comparable to the radiative one. We employ a numerical procedure appropriate for the studied wide quantum well to model the increase of the radiative decay rate in magnetic field. The results of the modeling agree well with the experimental data.

KW - Экситоны, магнитное поле, свето-экситонное взамодействие, квантовая яма

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DO - 10.1103/PhysRevB.96.155404

M3 - Article

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