Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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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
UR - http://www.scopus.com/inward/record.url?scp=85037701464&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.96.155404
DO - 10.1103/PhysRevB.96.155404
M3 - Article
AN - SCOPUS:85037701464
VL - 96
SP - 1
EP - 9
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 1098-0121
IS - 15
M1 - 155404
ER -
ID: 9062137