Temperature quenching of intracenter luminescence of Mn2+ ions in diluted magnetic semiconductors


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The temperature dependence of the spectral composition and intensity of intracenter luminescence of the Mn2+ 3d shell and the temperature dependence of the luminescence excitation spectra in an epitaxial layer of Cd0.2Mn0.8Te at different levels of optical excitation are investigated. It is found that in the crystals of type II1–xMnxVI with a high concentration of manganese, the characteristics of intracenter luminescence of Mn2+ depend on the efficiency of excitation migration over manganese ions. Under migration conditions, the luminescence quantum yield is determined by the cooperative effect (up-conversion).

作者简介

V. Agekyan

St. Petersburg State University

编辑信件的主要联系方式.
Email: v.agekyan@spbu.ru
俄罗斯联邦, St. Petersburg, 199034

A. Serov

St. Petersburg State University

Email: v.agekyan@spbu.ru
俄罗斯联邦, St. Petersburg, 199034

N. Filosofov

St. Petersburg State University; St. Petersburg National Academic University

Email: v.agekyan@spbu.ru
俄罗斯联邦, St. Petersburg, 199034; St. Petersburg, 194021

I. Shtrom

St. Petersburg State University

Email: v.agekyan@spbu.ru
俄罗斯联邦, St. Petersburg, 199034

G. Karczewski

Institute of Physics

Email: v.agekyan@spbu.ru
波兰, Warsaw, 02-668

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