Optical detection of paramagnetic centres in activated oxyfluoride glass-ceramics

6533b851fe1ef96bd12a8ff4

RESEARCH PRODUCT

Optical detection of paramagnetic centres in activated oxyfluoride glass-ceramics

U. Rogulis A. Fedotovs A. Antuzevics Dz. Berzins Ya. Zhydachevskyy D. Sugak

subject

010302 applied physics 0103 physical sciences :NATURAL SCIENCES:Physics [Research Subject Categories]General Physics and Astronomy 02 engineering and technology 021001 nanoscience & nanotechnology 0210 nano-technology 01 natural sciences

description

Electron paramagnetic resonance (EPR), magnetic circular dichroism (MCD) and EPR detected via MCD (MCD-EPR) investigations have been performed on rare-earth activated oxyfluoride glasses and glass-ceramics. Er3+, Gd3+, and Mn2+ activators in oxyfluoride glass-ceramics show paramagnetic MCD behaviour and the MCD-EPR has been detected. The results of the MCD-EPR measurements for the Er-doped oxyfluoride glass-ceramics showed that Er3+ ions in the CaF2 crystallites in these ceramics embed only in the cubic symmetry environment, similarly to the previous observations of cubic Gd3+ centres in the glass-ceramics containing CaF2. Finally, the correlation of optics and paramagnetic centres is discussed for Mn-doped YAlO3 ceramics.

year	journal	country	edition	language
2018-04-01

10.12693/aphyspola.133.785 https://dspace.lu.lv/dspace/handle/7/52461

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