Exchange splitting of the heavy hole exciton ground state in GaAs-GaAlAs quantum wells

1990 ◽  
Vol 229 (1-3) ◽  
pp. 151-154 ◽  
Author(s):  
M. Potemski ◽  
J.C. Maan ◽  
A. Fasolino ◽  
K. Ploog ◽  
G. Weimann
Keyword(s):  
Quantum Wells ◽  
Ground State ◽  
Heavy Hole ◽  
Exchange Splitting ◽  
Exciton Ground State

scholarly journals Спиновая динамика отрицательно заряженных экситонов в квантовых точках InP/(In,Ga)P в магнитном поле

2020 ◽  
Vol 62 (11) ◽  
pp. 1816
Author(s):  
С.В. Некрасов ◽  
Ю.Г. Кусраев ◽  
И.А. Акимов ◽  
L. Langer ◽  
M. Kotur ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Quantum Dots ◽  
Circular Polarization ◽  
Ground State ◽  
Heavy Hole ◽  
Spin Dynamics ◽  
Nuclear Spins ◽  
Time Resolved ◽  
Exciton Ground State ◽  
Charged Exciton

The dynamics of the photoluminescence negative circular polarization of the InP/(In,Ga)P quantum dots ensemble was studied. We find that in the time-resolved dependences of the polarization there are no oscillations in Voigt magnetic field. Also, with increasing field the polarization declines to zero. Such behavior is attributed to the peculiarities of the negatively charged exciton spin dynamics, particularly, to the fact that in the negatively charged exciton ground state the spin dynamics is governed by the heavy hole. We show that magnetic field depolarization of the photoluminescence occurs once the field of dynamically polarized nuclear spins acting on electron spins is surpassed.

Determination of the reduced mass of the exciton ground state in a quantum well

1994 ◽  
Vol 76 (10) ◽  
pp. 5778-5781 ◽  
Author(s):  
Kyu‐Seok Lee ◽  
El‐Hang Lee
Keyword(s):  
Quantum Well ◽  
Ground State ◽  
Exciton Ground State
Sign in / Sign up

Export Citation Format

Share Document