Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
A study is reported of the Mn2+ intracenter 3d luminescence in a dilute Cd0.5Mn0.5Te magnetic semiconductor at pulsed excitations of up to 3.5 MW/cm2. At high excitation levels and at a temperature of 77 K, the kinetics varies strongly over the emission band profile. The luminescence decay curve can be resolved into a fast and a delayed component, which correspond to the excitation of extended and localized states in the manganese ion system. The fast relaxation of the extended states is largely determined by the up-conversion. As the temperature is lowered, the contribution of the fast component at the center of the emission band and in its low-energy wing decreases because of the weakening role of the extended states lying above the mobility edge.
Язык оригинала | английский |
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Страницы (с-по) | 1626-1632 |
Число страниц | 7 |
Журнал | Physics of the Solid State |
Том | 43 |
Номер выпуска | 6 |
Состояние | Опубликовано - 1 сен 2001 |
ID: 36150364