Optical detection of paramagnetic centres in activated oxyfluoride glass-ceramics

U. Rogulis; A. Fedotovs; A. Antuzevics; D. Berzins; Y. Zhydachevskyy; D. Sugak

doi:10.12693/APhysPolA.133.785

Optical detection of paramagnetic centres in activated oxyfluoride glass-ceramics

U. Rogulis^*
, A. Fedotovs
, A. Antuzevics
, D. Berzins
, Y. Zhydachevskyy
, D. Sugak

^*Corresponding author for this work

Laboratory of Spectroscopy, Institute of Solid State Physics

University of Latvia
Institute of Physics of the Polish Academy of Sciences
Lviv Polytechnic National University

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	785-788
Number of pages	4
Journal	Acta Physica Polonica A
Volume	133
Issue number	4
DOIs	https://doi.org/10.12693/APhysPolA.133.785
Publication status	Published - Apr 2018

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title = "Optical detection of paramagnetic centres in activated oxyfluoride glass-ceramics",

abstract = "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.",

author = "U. Rogulis and A. Fedotovs and A. Antuzevics and D. Berzins and Y. Zhydachevskyy and D. Sugak",

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TY - JOUR

T1 - Optical detection of paramagnetic centres in activated oxyfluoride glass-ceramics

AU - Rogulis, U.

AU - Fedotovs, A.

AU - Antuzevics, A.

AU - Berzins, D.

AU - Zhydachevskyy, Y.

AU - Sugak, D.

PY - 2018/4

Y1 - 2018/4

N2 - 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.

AB - 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.

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Optical detection of paramagnetic centres in activated oxyfluoride glass-ceramics

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