1992
DOI: 10.1016/0039-6028(92)90394-l
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Two-dimensional exciton magnetic polaron in semimagnetic quantum wells

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Cited by 20 publications
(6 citation statements)
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“…It can be seen from Fig. 6 that the data obtained in [48,49] for similar systems are close to each other but differ from the results for bulk exciton magnetic polarons. The results of theoretical calculations [50,51] are also presented in Fig.…”
Section: Carrier Photogenerationmentioning
confidence: 53%
See 1 more Smart Citation
“…It can be seen from Fig. 6 that the data obtained in [48,49] for similar systems are close to each other but differ from the results for bulk exciton magnetic polarons. The results of theoretical calculations [50,51] are also presented in Fig.…”
Section: Carrier Photogenerationmentioning
confidence: 53%
“…The data taken from[48] and the results obtained by selective photoluminescence spectroscopy[49] are compared with the results of theoretical calculations (1) at x = 0.26 and…”
mentioning
confidence: 99%
“…The radius, r h , grows with decreasing temperature given by r h ̃( a b /2) ln( J 0 / k B T ), where J 0 characterizes the strength of the exchange between carriers and magnetic ion. It was also shown that the nearby BMPs align ferromagnetically via effective coupling mediated by Mn spins lying in between the BMPs. , As a result, BMPs start to overlap and form percolated clusters aligned ferromagnetically as temperature decreases (Figure f). ,, From both theoretical calculations and experimental data, the MP formation was also found to be more favorable when the system dimension was reduced, particularly in the QDs case. This phenomenon was explained by the fact that the quantum confinement could localize carriers in the proximity of magnetic ions and further strengthen the exchange interactions. More interestingly, the binding energy of the MPs was remarkably enhanced when the system dimension is shrunk, resulting in a higher T c in contrast to those of bulk materials. , …”
Section: Resultsmentioning
confidence: 97%
“…Энергетическое расстояние E максимумов полос люминесценции слоев CdTe от энергии свободного экситона барьерного слоя ZnTe и ширина этих полос FWHM в образцах № 1−4 (пустые и заполненные кружки соответственно). Треугольниками показаны значения FWHM полос люминесценции слоев CdTe ненапряженной гетероструктуры CdTe/CdMnTe согласно данным работы[11]. На горизонтальной оси указано число монослоев в слое CdTe.…”
unclassified
“…Видно, что при росте номинальной толщины слоя от 1 до 8 МС FWHM увеличивается на порядок. Для сравнения приведены аналогичные данные для ненапряженной структуры с КЯ CdTe/CdMnTe, где с ростом толщины КЯ, напротив, происходит быстрое сужение полосы излучения вследствие уменьшения роли флуктуаций толщины КЯ[11].Относительные интенсивности излучения слоев CdTe в образцах №№ 1−4 соотносятся следующим образом при температуре T = 5 K и плотности мощности надбарьерного возбуждения P = 10 W • cm −2 , пиковая интенсивность -1.0 : 1.8 : 1.4 : 0.85, интегральная интенсивность -1.0 : 3.2 : 8.3 : 10.7.…”
unclassified