Magnetic and luminescent properties of chromium-doped ZnSe crystals

Radevici Ivan; Sushkevich Konstantin; Huhtinen Hannu; Nedeoglo Natalia; Nedeoglo Dumitru; Paturi Petriina

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RADEVICI, Ivan, SUSHKEVICH, Konstantin, HUHTINEN, Hannu, NEDEOGLO, Natalia, NEDEOGLO, Dumitru, PATURI, Petriina. Magnetic and luminescent properties of chromium-doped ZnSe crystals. In: Solid State Sciences, 2014, vol. 38, pp. 49-54. ISSN 1293-2558. DOI: https://doi.org/10.1016/j.solidstatesciences.2014.09.015

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Solid State Sciences

Volumul 38 / 2014 / ISSN 1293-2558 /ISSNe 1873-3085

Magnetic and luminescent properties of chromium-doped ZnSe crystals

DOI:https://doi.org/10.1016/j.solidstatesciences.2014.09.015

Pag. 49-54

Radevici Ivan¹², Sushkevich Konstantin¹, Huhtinen Hannu², Nedeoglo Natalia¹, Nedeoglo Dumitru¹, Paturi Petriina²

¹ Moldova State University,
² Wihuri Physical Laboratory, University of Turku

Disponibil în IBN: 3 octombrie 2023

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Magnetic and photoluminescent properties of ZnSe:Cr crystals were studied within 5e300 K temperature range. It was shown that, at chromium concentrations below 0.05 at. %, Cr ions form point substitutional defects, which exhibit ferromagnetic properties. As a result, the emission caused by radiative recombination of the chromium-bound excitons appears and the chromium intrashell emission intensity increases. At concentration of the doping impurity higher than 0.05 at. %, chromium starts to form homonuclear pairs, which are antiferromagnetic and also lead to the concentration quenching of the chromium emission bands in ZnSe:Cr crystals photoluminescent spectra.

Cuvinte-cheie
Luminescence, Magnetic phenomena, Magnetic semiconductors, Semiconducting II-VI materials

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