Optical Detection of Paramagnetic Centres in Activated Oxyfluoride Glass-Ceramics

• Authors: U. Rogulis , A. Fedotovs , A. Antuzevics , Dz. Berzins , Ya. Zhydachevskyy , D. Sugak
• Languages of publication: EN

Abstracts

EN

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.

Keywords

EN

76.70.Hb; 76.30.-v

Discipline

• 76.70.Hb: Optically detected magnetic resonance (ODMR)
• 76.30.-v: Electron paramagnetic resonance and relaxation(see also 33.35.+r Electron resonance and relaxation in atomic and molecular physics; 87.80.Lg Magnetic and paramagnetic resonance in biological physics)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2018
• Volume: 133
• Issue: 4
• Pages: 785-788

Dates

published

2018-04

Contributors

author

U. Rogulis

• Institute of Solid State Physics, University of Latvia, 8 Kengaraga Str., Riga, Latvia

author

A. Fedotovs

• Institute of Solid State Physics, University of Latvia, 8 Kengaraga Str., Riga, Latvia

author

A. Antuzevics

• Institute of Solid State Physics, University of Latvia, 8 Kengaraga Str., Riga, Latvia

author

Dz. Berzins

• Institute of Solid State Physics, University of Latvia, 8 Kengaraga Str., Riga, Latvia

author

Ya. Zhydachevskyy

• Institute of Physics, Polish Academy of Sciences, Warsaw, Poland
• Lviv Polytechnic National University, Lviv, Ukraine

author

D. Sugak

• Lviv Polytechnic National University, Lviv, Ukraine

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Identifiers

DOI

10.12693/APhysPolA.131.785