2011
DOI: 10.1103/physrevb.83.155206
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Wave-vector dependence of magnetic properties of excitons in ZnTe

Abstract: International audienceThe magnetic properties of heavy-hole excitons in wide quantum wells of ZnTe with Znx Mg1−x Te barriers have been studied with photoluminescence and reflectivity measurements. The exciton magnetic moments (as characterized by the g values) and the diamagnetic shifts of the exciton transitions are found to depend strongly on the wave-vector component Kz associated with translational motion of the exciton normal to the plane of the quantum well. The case of ZnTe differs from examples of thi… Show more

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Cited by 18 publications
(17 citation statements)
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“…6 is observed not only for QWs of varying widths but also for the excited exciton states in the QWs. We should note that monotonic dependence of the exciton g-factor on the effective wave vector has been observed previously only for the wide QWs [28][29][30]. …”
Section: Narrow Quantum Wellsmentioning
confidence: 99%
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“…6 is observed not only for QWs of varying widths but also for the excited exciton states in the QWs. We should note that monotonic dependence of the exciton g-factor on the effective wave vector has been observed previously only for the wide QWs [28][29][30]. …”
Section: Narrow Quantum Wellsmentioning
confidence: 99%
“…Large variation of exciton g-factor for different quantum-confined exciton states has been experimentally observed in several heterostructures with wide QWs [27][28][29][30]. Effect of the quantum confinement of excitons in the QWs gives rise to quasiperiodic peculiarities in optical spectra corresponding to the quantization of the centerof-mass exciton motion [31,32].…”
Section: Introductionmentioning
confidence: 99%
“…Такой ме-тод позволяет исследовать тонкие оптические эффекты и определять связанные с ними зонные параметры. В част-ности, этим методом был обнаружен эффект гигантского увеличения g-фактора экситона при его движении [1] и определены параметры гамильтониана дырки [2], ответ-ственные за возникновение этого эффекта. В работе [3] из анализа спектров экситонного отражения в магнит-ном поле был выявлен специфичный для квантовых ям эффект магнитоиндуцированной пространственной дисперсии -эффект четности.…”
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“…Действительно, для любой структуры с КЯ наблюдаемый сигнал отра-жения содержит в себе вклад не только от КЯ, но и от поверхности образца, а также, в некоторых случаях, и от границы структура-подложка. Для структуры с одиночной КЯ коэффициент отражения может быть представлен в виде [7] R = r 01 + r qw e i 1 + r 12 e i 2 …”
unclassified
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