Результаты исследований: Научные публикации в периодических изданиях › статья
Temperature properties of intracenter luminescence of Mn2+ ions in diluted magnetic semiconductors and related heterostructures. / Agekyan, V.F.; Serov, A.Y.; Filosofov, N.G.; Karczewski, G.
в: Physics of the Solid State, Том 57, № 11, 2015, стр. 2179-2183.Результаты исследований: Научные публикации в периодических изданиях › статья
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TY - JOUR
T1 - Temperature properties of intracenter luminescence of Mn2+ ions in diluted magnetic semiconductors and related heterostructures
AU - Agekyan, V.F.
AU - Serov, A.Y.
AU - Filosofov, N.G.
AU - Karczewski, G.
PY - 2015
Y1 - 2015
N2 - The intracenter luminescence intensity of Mn2+ ions in II–VI diluted magnetic semiconductors weakly varies in the temperature range of 5–60 K, but a further increase in temperature leads to a rapid quenching of luminescence. There is an opinion that a drastic change in the temperature dependence of the intracenter luminescence of Mn2+ at about 60 K is associated with distortion of an anionic tetrahedron whose center is occupied by the manganese ion. In this work, the temperature and kinetic properties of the intracenter luminescence of Mn2+ have been studied at different levels of optical excitation in bulk diluted magnetic semiconductor crystals and the related quantum-well structures. It has been found that quenching of the intracenter luminescence of Mn2+ is determined by a cooperative process (up-conversion), the efficiency of which increases with an acceleration of migration and an increase in the density of excited Mn2+ ions.
AB - The intracenter luminescence intensity of Mn2+ ions in II–VI diluted magnetic semiconductors weakly varies in the temperature range of 5–60 K, but a further increase in temperature leads to a rapid quenching of luminescence. There is an opinion that a drastic change in the temperature dependence of the intracenter luminescence of Mn2+ at about 60 K is associated with distortion of an anionic tetrahedron whose center is occupied by the manganese ion. In this work, the temperature and kinetic properties of the intracenter luminescence of Mn2+ have been studied at different levels of optical excitation in bulk diluted magnetic semiconductor crystals and the related quantum-well structures. It has been found that quenching of the intracenter luminescence of Mn2+ is determined by a cooperative process (up-conversion), the efficiency of which increases with an acceleration of migration and an increase in the density of excited Mn2+ ions.
U2 - 10.1134/S1063783415110025
DO - 10.1134/S1063783415110025
M3 - Article
VL - 57
SP - 2179
EP - 2183
JO - Physics of the Solid State
JF - Physics of the Solid State
SN - 1063-7834
IS - 11
ER -
ID: 3979577