Search Results - "Sobolev, B.P"

The periodicity of negative thermal expansion in rare earth trifluorides by Sobolev, B.P., Sulyanova, E.A.

“…Negative thermal expansion (NTE) in trifluorides of rare earth elements (REEs – R) is considered. The electronic structure of R divides RF3 into two…”
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Full quasi-system “from LaF3 to LuF3” as a combination of 14 binary systems of lanthanide trifluorides with maximal chemical proximity by Sobolev, B.P.

“…The combination of 15 RF3 (R – rare earth elements – REEs without ScF3 and YF3) into one system “from LaF3 to LuF3” we call a full quasi-system (QS). It…”
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Electron diffraction study and ionic conductivity of fluorite Ba1-xLaxF2+x and tysonite La1-yBayF3-y phases in the BaF2-LaF3 system by Nikolaichik, V.I., Sobolev, B.P., Sorokin, N.I., Avilov, A.S.

“…Crystals of fluorite phases with the CaF2 structure: Ba1−xLaxF2+x (x = 0, 0.05, 0.105, 0.25, 0.35, 0.40) and those of tysonite ones with the LaF3 structure:…”
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Lanthanum and Lanthanide Trifluorides: Lanthanide Contraction and Volume of Fluorine Ion by Sobolev, B. P.

“…Lanthanide contraction of lanthanum and 14 lanthanides ( Ln ), leading to a decrease in R 3+ ionic radii by ~15% (with respect to the smallest one) with an…”
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Nonstoichiometry in Inorganic Fluorides. IV: The Initial Stage of Anionic Nonstoichiometry in RF3 (R = Y, La, Ln) by Sobolev, B. P.

“…The anionic nonstoichiometry in inorganic fluorides is at result of substitution of F 1– for O 2– in the anionic sublattice. All families of fluorides exhibit…”
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Nanostructure and F-ionic conductivity of La1−Sr F3− tysonite crystals by Nikolaichik, V.I., Sobolev, B.P., Sorokin, N.I., Avilov, A.S.

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Nonstoichiometry in Inorganic Fluorides. III: Anionic Nonstoichiometry in MF2 (M = Ca, Sr, Ba) by Sobolev, B. P.

“…Anionic nonstoichiometry in fluorides (replacement of F 1– with O 2– ) deteriorates the quality of optical materials. Two reviews have been devoted to the…”
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Nanostructure and F-ionic conductivity of La1−ySryF3−y tysonite crystals by Nikolaichik, V.I., Sobolev, B.P., Sorokin, N.I., Avilov, A.S.

“…Phase composition of La1−ySryF3−y (y=0, 0.05, 0.0725, 0.10, 0.15) crystals with the tysonite-type (LaF3) structure has been studied by electron diffraction and…”
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Cation ordered structure and F-ionic conductivity of Er0.7Ca0.3F2.7 tysonite-type crystals by Nikolaichik, V.I., Sobolev, B.P., Sorokin, N.I., Avilov, A.S.

“…Cation ordering in the Er0.7Ca0.3F2.7 monoclinic phase with the tysonite-type (LaF3) structure, which was formed in Er1−yCayF3−y samples of the 65–72.5mol%…”
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Influence of Nonstoichiometry in Fluoride Phase on the Ionic Conductivity of Composite Fluoride‒Oxide Materials 90PrF3 · 10Al2O3 and 90Pr0.95Sr0.05F2.95 · 10Al2O3 by Sorokin, N. I., Sobolev, B. P.

“…The two-phase fluoride oxide composite 90Pr 0.95 Sr 0.05 F 2.95 · 10Al 2 O 3 (mol %) composed of a highly conductive fluoride matrix with a tysonite structure…”
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Crystal Growth and Thermal Conductivity of the Congruently Melting Solid Solution Cd0.77Sr0.23F2 by Karimov, D. N., Buchinskaya, I. I., Sorokin, N. I., Popov, P. A., Sobolev, B. P.

“…— Crystals of the Cd 0.77 Sr 0.23 F 2 solid solution (sp. gr. Fm m , lattice parameter a = 5.4882(1) Å), corresponding to the minimum in the liquidus and…”
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Growth of Fluorite Solid Solution Crystals in the Ternary SrF2–BaF2–LaF3 System and Investigation of Their Properties by Karimov, D. N., Buchinskaya, I. I., Ivanova, A. G., Il’ina, O. N., Ivanovskaya, N. A., Sorokin, N. I., Sobolev, B. P., Glushkova, T. M., Ksenofontov, D. A.

“…A series of three-component isostructural fluorite crystals (Sr 1– x Ba x ) 0.7 La 0.3 F 2.3 (sp. gr. , 0 ≤ x ≤ 1), the compositions of which belong to the Sr…”
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Ionic conductivity of BaF2 + ZnF2 + CdF2 + YbF3 optical fluoride ceramic by Sorokin, N. I., Fedorov, P. P., Buchinskaya, I. I., Sobolev, B. P.

“…The electrical conductivity of an optical fluoride ceramic in the quaternary system BaF 2 + ZnF 2 + CdF 2 + YbF 3 has been determined in the temperature range…”
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Structural aspects of fast ionic conductivity of rare earth fluorides by Trnovcová, V., Garashina, L.S., Škubla, A., Fedorov, P.P., Čička, R., Krivandina, E.A., Sobolev, B.P.

“…The structure and ionic conductivity of orthorhombic β-YF 3 structured rare earth fluorides and of tysonite-structured ones are investigated. Temperature…”
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Inelastic neutron scattering study of the superionic solid solutions Ba1−La F2 by Kadlec, F., Moussa, F., Simon, P., Sobolev, B.P.

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Properties of CdF2:Ga as a medium for real-time holography by Linke, R.A., Shcheulin, A.S., Ryskin, A.I., Buchinskaya, I.I., Fedorov, P.P., Sobolev, B.P.

“…The metastable nature of the excited state of bistable Ga centers in semiconducting CdF2 crystals allows for the use of CdF2:Ga and CdF2:Ga,Y crystals as…”
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Scintillation characteristics of nonstoichiometric phases formed in MF2–GdF3–CeF3 system Part I. (M=Ba), scintillation of Ba0.9Gd0.1−Ce F2.1 (0⩽x⩽0.1) fluorite-type crystals by Kobayashi, M, Ishii, M, Sobolev, B.P, Zhmurova, Z.I, Krivandina, E.A

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Scintillation characteristics of nonstoichiometric phases formed in MF2–GdF3–CeF3 system Part II. (M=Ba), scintillation of Ba1−Ce F2+ (0.1⩽x⩽0.45) fluorite type crystals by Kobayashi, M., Ishii, M., Sobolev, B.P., Zhmurova, Z.I., Krivandina, E.A.

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Scintillation characteristics of nonstoichiometric phases formed in MF 2–GdF 3–CeF 3 system Part I. (M=Ba), scintillation of Ba 0.9Gd 0.1− xCe xF 2.1 (0⩽ x⩽0.1) fluorite-type crystals by Kobayashi, M, Ishii, M, Sobolev, B.P, Zhmurova, Z.I, Krivandina, E.A

“…As the Ce concentration ( x) was increased from 0 to 0.1 (complete replacement of Gd), the emission peak wavelength shifted from 310 (due to Gd 3+ emission) to…”
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Scintillation characteristics of nonstoichiometric phases formed in MF 2–GdF 3–CeF 3 system Part II. (M=Ba), scintillation of Ba 1− xCe xF 2+ x (0.1⩽ x⩽0.45) fluorite type crystals by Kobayashi, M., Ishii, M., Sobolev, B.P., Zhmurova, Z.I., Krivandina, E.A.

“…Among three different Ce-concentrations (10, 27 and 45 mol%) which we tested, the 27 mol% sample showed by far the best radiation hardness and the maximum fast…”
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