کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1592957 1002680 2012 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Trion confinement and exciton shrinkage in the 2DEG at high magnetic fields
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Trion confinement and exciton shrinkage in the 2DEG at high magnetic fields
چکیده انگلیسی

We study the photoluminescence from the negatively charged (X−) trions and neutral (X) excitons, in a diluted 2DEG in a magnetic field (B) up to 55 T. At zero B we analyze the evolution of the X− and X   emission intensity, tuning it through the optical depletion effect. At non-zero field we find that the emission intensity of the singlet state of the trion XS− and of X are in inverse proposition to B  , revealing the effect and the mechanism of the magnetic confinement of XS− and of the excitonic shrinkage on the emission intensity.


► Charged excitons are candidates for application in quantum information spin-based quantum devices.
► Photoluminescence experiments at liquid helium temperature in pulsed magnetic fields.
► Charged exciton's magnetic confinement and shrinkage elucidated in a quantum confined system.
► The interplay between disorder and Coulomb interactions in the 2DEG reveals new interaction-related effects.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 152, Issue 13, July 2012, Pages 1123–1126
نویسندگان
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