Optical Properties of GaSe Crystals Containing Mn Impurity Atoms. II. Excitonic and Impurity Emission
The impurity band (Emax = 1.842 eV) observed in photoluminescence (PL) spectra of GaSe: Mn crystals is demonstrated to be due to intracentre transitions of the Mn2+ ion. The energy of a zero‐phonon transition (EZPL = 1.928 eV) and of optical phonons participating in the formation of the PL of the el...
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| Veröffentlicht in: | Physica status solidi. B. Basic research 1990-09, Vol.161 (1), p.427-434 |
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| container_title | Physica status solidi. B. Basic research |
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| creator | Gnatenko, Yu. P. Zhirko, Yu. I. Kovalyuk, Z. D. |
| description | The impurity band (Emax = 1.842 eV) observed in photoluminescence (PL) spectra of GaSe: Mn crystals is demonstrated to be due to intracentre transitions of the Mn2+ ion. The energy of a zero‐phonon transition (EZPL = 1.928 eV) and of optical phonons participating in the formation of the PL of the electronic‐vibrational band is determined. Emission of excitonic polarons — ferronic states, resulting from a spin polarization of the electron and hole, included in the exciton, and of local antiferromagnetic‐ordered magnetic moments of Mn2+ ions is observed at T < 20 K.
[Russian Text Ignored]. |
| doi_str_mv | 10.1002/pssb.2221610143 |
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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Photoluminescence Physics |
| title | Optical Properties of GaSe Crystals Containing Mn Impurity Atoms. II. Excitonic and Impurity Emission |
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