Electron paramagnetic resonance and X-ray diffraction study of PbF2 fine powders mechanochemically doped with Er3+ ions
Abstract
Investigation of the mechanochemical doping of PbF2 powders with Er3+ ions with electron paramagnetic resonance and X-ray diffraction is presented. In the analysis of the results a possibility of the structural transformation between the cubic β-PbF2 and orthorhombic α-PbF2 phases in the course of synthesis was taken into account. It is shown that regardless of the initial state of PbF2 it reveals high efficiency of the mechanochemical doping with Er3+ ions. Obtained particles are found in (α/β)-PbF2 structurally inhomogeneous state with the majority of the Er3+ ions located in the equilibrium α-PbF2 fraction. Preferrable location of the Er3+ ions in the α-PbF2 phase is related to the fact that the formation of the cation vacancies necessary for a mechanically activated diffusion of erbium ions into the particles and nucleation of the α-PbF2 phase proceed in parallel and is mediated by dislocations created in the course of synthesis. Annealing of the sample leads to a conversion of its entire volume into the metastable β-PbF2 phase with all the Er3+ centers possessing the cubic symmetry.
Supporting agencies: The reported study was funded by RFBR according to the research project No.16-32-00152 mol a (I.A.I., I.N.G. and Y.V.L.) and by the subsidy allocated to Kazan Federal University for the state assignment in the sphere of scientific activities, Nos. 3.8138.2017/8.9 (D.A.T.) and 3.7704.2017/4.6 (R.V.Y.).
About the Authors
I. A. Irisova
Kazan Federal University
Russian Federation
Russian Federation
Kremlevskaya 18, Kazan 420008
I. N. Gracheva
Kazan Federal University
Russian Federation
Russian Federation
Kremlevskaya 18, Kazan 420008
Y. V. Lysogorskiy
Kazan Federal University
Russian Federation
Russian Federation
Kremlevskaya 18, Kazan 420008
A. A. Shinkarev
Kazan National Research Technological University
Russian Federation
Russian Federation
K. Marx str. 68, 420015 Kazan
A. A. Rodionov
Kazan Federal University
Russian Federation
Russian Federation
Kremlevskaya 18, Kazan 420008
D. A. Tayurskii
Kazan Federal University
Russian Federation
Russian Federation
Kremlevskaya 18, Kazan 420008
R. V. Yusupov
Kazan Federal University
Russian Federation
Russian Federation
Kremlevskaya 18, Kazan 420008
References
1. Tunnermann A., Schreiber T., Roser F., Liem A., Hofer S., Zellmer H., Nolte S., Limpert J., J. Phys. B 38, S681 (2005).
2. Dantelle G., Mortier M., Vivien D., Phys. Chem. Chem. Phys. 9, 5591 (2007).
3. Dantelle G., Mortier M., Goldner P., Vivien D., J. Phys.: Condens. Matter 18, 7905 (2006).
4. Prokopets V. S., Bedrin E. A., Mechanoactivated Technology of Obtaining Mineral Bonding Agents Based on Acidic Ashes from Heat Electropower Stations (SibADI, 2003).
5. Scholz G., Dorfel I., Heidemann D., Feist M., Stosser R., J. Solid State Chem. 179, 1119 (2006).
6. Irisova I. A., Rodionov A. A., Tayurskii D. A., Yusupov R. V., J. Phys.: Conf. Ser. 324, 012026 (2011).
7. Irisova I. A., Rodionov A. A., Tayurskii D. A., Yusupov R. V., Magn. Reson. Solids 15, 13203 (2013).
8. Irisova I. A., Rodionov A. A., Tayurskii D. A., Yusupov R. V., Opt. Spectrosc. 116, 783 (2014).
9. Irisova I., Kiiamov A., Korableva S., Rodionov A., Tayurskii D., Yusupov R., Appl. Magn. Reson. 46, 515 (2015).
10. Borisenko E. B., Klassen N. V., Savchenko I. B., Phys. Solid State 39, 559 (1997).
11. Sobolev B. P., The Rare Earth Trifluorides. Part II. Introduction to Materials Science of Multicomponent Metal Fluoride Crystals (Barcelona, Institut d'Estudis Catalans, 2001).
12. Altshuler S. A., Kozyrev B. M., Electron Paramagmetic Resonance in Compounds of Tran- sition Elements (Wiley, New York, 1974).
13. Malkin B. Z., Nikitin S. I., Mumdzhi I. E., Zverev D. G., Yusupov R. V., Gilmutdinov I. F., Batulin R., Gabbasov B. F., Kiiamov A. G., Adroja D. T., Young O., Petrenko O. A., Phys. Rev. B 92, 094415 (2015).
Review
For citations:
Irisova I.A., Gracheva I.N., Lysogorskiy Y.V., Shinkarev A.A., Rodionov A.A., Tayurskii D.A., Yusupov R.V. Electron paramagnetic resonance and X-ray diffraction study of PbF2 fine powders mechanochemically doped with Er3+ ions. Magnetic Resonance in Solids. 2017;19(2):17209 (9 pp.).
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