Growth of Crystals of Fluorite Solid Solutions of the CdF2-PbF2-MnF(2)System and Their Spectroscopic Properties

Buchinskaya I. I.; Batygov S. Kh.; Ivanova A. G.

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Growth of Crystals of Fluorite Solid Solutions of the CdF2-PbF2-MnF(2)System and Their Spectroscopic Properties

机译：Growth of Crystals of Fluorite Solid Solutions of the CdF2-PbF2-MnF(2)System and Their Spectroscopic Properties

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A concentration series of (Pb0.67Cd0.33)(1 -) xMnxF2 + (x) (0 <= x <= 0.7) solid solution crystals and Cd(0.93)Mn(0.07)F(2)crystal have been grown from melt by the vertical directional melt crystallization (Bridgman) method in a fluorinating atmosphere. Single-phase crystals with the fluorite structure are obtained by doping Pb(0.67)Cd(0.33)F(2)with manganese fluoride up to 5 mol %. At higher MnF(2)contents in the crystals, the tetragonal impurity phase, isostructural to the Ba2MF6(M= Mn, Co, Zn) group of compounds, is precipitated. The optical absorption and luminescence of the Cd(0.93)Mn(0.07)F(2)and (Pb0.67Cd0.33)(0.95)Mn(0.05)F(2)crystals have been investigated. The absorption spectra indicate octahedral symmetry of the environment of Mn(2+)ions in the ternary crystal (Pb0.67Cd0.33)(0.95)Mn0.05F2. The wide Mn(2+)luminescence band in (Pb0.67Cd0.33)(0.95)Mn0.05F2, peaking at 605 nm, is observed only at 77 K.

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《Crystallography reports》 |2020年第4期|612-617|共6页
作者
Buchinskaya I. I.; Batygov S. Kh.; Ivanova A. G.;
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Russian Acad Sci, Fed Sci Res Ctr Crystallog & Photon, Shubnikov Inst Crystallog, Moscow 119333, Russia;

Russian Acad Sci, Prokhorov Gen Phys Inst, Moscow 119991, Russia;

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中图分类晶体学;
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Growth of Crystals of Fluorite Solid Solutions of the CdF2-PbF2-MnF(2)System and Their Spectroscopic Properties

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