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2008•Physics of the Solid StateRequires access

Photoluminescence of ZnMnTe quantum-well structures in a magnetic field

В. Н. Кац, В. П. Кочерешко, V. F. Agekyan, L. Besombes, G. Karczewski

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Abstract

Photoluminescence spectra of strained structures Zn1 − x Mn x Te/Zn1 − y Mg y Te with magnetic quantum wells and nonmagnetic barriers are studied. The Zeeman splitting of the heavy exciton is found to follow an unusual behavior: both spin components shift down in energy. The heavy-exciton photoluminescence Zeeman components are observed to be inversely distributed in intensity, with the higher energy component being stronger than the lower energy component. The Zeeman splitting of the exciton in a magnetic field is calculated. The data obtained permit refinement of some parameters of the energy spectrum and magnetic properties of these structures.

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What this paper is about

Photoluminescence spectra of strained structures Zn1 − x Mn x Te/Zn1 − y Mg y Te with magnetic quantum wells and nonmagnetic barriers are studied. The Zeeman splitting of the heavy exciton is found to follow an unusual behavior: both spin components shift down in energy. The heavy-exciton photoluminescence Zeeman components are observed to be inversely distributed in intensity, with the higher energy component being stronger than the lower energy component. The Zeeman splitting of the exciton in a magnetic field is calculated. The data obtained permit refinement of some parameters of the energy spectrum and magnetic properties of these structures.

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Available abstract

Photoluminescence spectra of strained structures Zn1 − x Mn x Te/Zn1 − y Mg y Te with magnetic quantum wells and nonmagnetic barriers are studied. The Zeeman splitting of the heavy exciton is found to follow an unusual behavior: both spin components shift down in energy. The heavy-exciton photoluminescence Zeeman components are observed to be inversely distributed in intensity, with the higher energy component being stronger than the lower energy component. The Zeeman splitting of the exciton in a magnetic field is calculated. The data obtained permit refinement of some parameters of the energy spectrum and magnetic properties of these structures.

Key concepts: Zeeman effect, Photoluminescence, Exciton, Energy level splitting, Magnetic field, Condensed matter physics, Materials science, Solid-state physics

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