Super-long life time for 2D cyclotron spin-flip excitons

被引：0
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作者：
L. V. Kulik
A. V. Gorbunov
A. S. Zhuravlev
V. B. Timofeev
S. Dickmann
I. V. Kukushkin
机构：
[1] Institute of Solid State Physics,
[2] Russian Academy of Sciences,undefined
来源：
Scientific Reports | / 5卷
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摘要：
An experimental technique for the indirect manipulation and detection of electron spins entangled in two-dimensional magnetoexcitons has been developed. The kinetics of the spin relaxation has been investigated. Photoexcited spin-magnetoexcitons were found to exhibit extremely slow relaxation in specific quantum Hall systems, fabricated in high mobility GaAs/AlGaAs structures; namely, the relaxation time reaches values over one hundred microseconds. A qualitative explanation of this spin-relaxation kinetics is presented. Its temperature and magnetic field dependencies are discussed within the available theoretical framework.
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