EPR spectra of the Mn super(2+) ion in the oxyfluoride glass ceramics containing BaF sub(2) nanocrystalline phase

EPR spectra of the Mn super(2+) ion in the oxyfluoride glass ceramics containing BaF sub(2) nanocrystalline phase

Electron paramagnetic resonance (EPR) spectroscopy has been used to investigate structure of the oxyfluoride glass ceramics containing BaF sub(2) fluoride component. Mn super(2+) ion has been used as a paramagnetic probe. After successful material synthesis and thermal treatment at temperatures abov...

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Veröffentlicht in:IOP conference series. Materials Science and Engineering 2012-01, Vol.38, p.1-4
Hauptverfasser: Berzins, Dz, Fedotovs, A, Kiselova, O, Sarakovskis, A
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Sprache:eng
Schlagworte:
Crystal structure
Crystallites
Fluorides
Glass ceramics
Oxyfluorides
SHF
Spectra
X-band
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Fedotovs, A
Kiselova, O
Sarakovskis, A
description Electron paramagnetic resonance (EPR) spectroscopy has been used to investigate structure of the oxyfluoride glass ceramics containing BaF sub(2) fluoride component. Mn super(2+) ion has been used as a paramagnetic probe. After successful material synthesis and thermal treatment at temperatures above first crystallization temperature transparent glass ceramics samples were obtained. For these samples superhyperfine (SHF) structure in the X-band EPR spectra taken at 77 K has been observed. Such SHF structure is characteristic to fluorine hyperfine interaction observed in the fluoride crystals. Obtained data allow analyzing the structure of the BaF sub(2) crystallites and possible location of the Mn super(2+) ion in the BaF sub(2) crystalline lattice.
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subjects Crystal structure
Crystallites
Fluorides
Glass ceramics
Oxyfluorides
SHF
Spectra
X-band
title EPR spectra of the Mn super(2+) ion in the oxyfluoride glass ceramics containing BaF sub(2) nanocrystalline phase
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