Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Enhanced spin-relaxation time due to electron-electron scattering in semiconductor quantum wells. / Leyland, W. J.H.; John, G. H.; Harley, R. T.; Glazov, M. M.; Ivchenko, E. L.; Ritchie, D. A.; Farrer, I.; Shields, A. J.; Henini, M.
в: Physical Review B - Condensed Matter and Materials Physics, Том 75, № 16, 165309, 10.04.2007.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Enhanced spin-relaxation time due to electron-electron scattering in semiconductor quantum wells
AU - Leyland, W. J.H.
AU - John, G. H.
AU - Harley, R. T.
AU - Glazov, M. M.
AU - Ivchenko, E. L.
AU - Ritchie, D. A.
AU - Farrer, I.
AU - Shields, A. J.
AU - Henini, M.
PY - 2007/4/10
Y1 - 2007/4/10
N2 - We present a detailed experimental and theoretical analysis of the spin dynamics of two-dimensional electron gases (2DEGs) in a series of n -doped GaAs Alx Ga1-x As quantum wells. Picosecond-resolution polarized pump-probe reflection techniques were applied in order to study in detail the temperature, concentration, and quantum-well-width dependencies of the spin relaxation rate of a small photoexcited electron population. A rapid enhancement of the spin lifetime with temperature up to a maximum near the Fermi temperature of the 2DEG was demonstrated experimentally. These observations are consistent with the D'yakonov-Perel' spin-relaxation mechanism controlled by electron-electron collisions. The experimental results and theoretical predictions for the spin relaxation times are in good quantitative agreement.
AB - We present a detailed experimental and theoretical analysis of the spin dynamics of two-dimensional electron gases (2DEGs) in a series of n -doped GaAs Alx Ga1-x As quantum wells. Picosecond-resolution polarized pump-probe reflection techniques were applied in order to study in detail the temperature, concentration, and quantum-well-width dependencies of the spin relaxation rate of a small photoexcited electron population. A rapid enhancement of the spin lifetime with temperature up to a maximum near the Fermi temperature of the 2DEG was demonstrated experimentally. These observations are consistent with the D'yakonov-Perel' spin-relaxation mechanism controlled by electron-electron collisions. The experimental results and theoretical predictions for the spin relaxation times are in good quantitative agreement.
UR - http://www.scopus.com/inward/record.url?scp=34247109035&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.75.165309
DO - 10.1103/PhysRevB.75.165309
M3 - Article
AN - SCOPUS:34247109035
VL - 75
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 1098-0121
IS - 16
M1 - 165309
ER -
ID: 36468298