Výsledky vyhledávání - "O. V. Baryshnikova"

Ferroelectric Phase Transitions in Sr9Tm(VO4)7 upon Substitution of Calcium and Lead for Strontium

Autor: S. Yu. Stefanovich, M. A. Potaenko, D. V. Deineko, O. V. Baryshnikova, Yu. Yu. Dikhtyar, Vladimir A. Morozov, Bogdan I. Lazoryak

Publikováno v: Physics of the Solid State. 62:856-859

In Sr9 – xMxTm(VO4)7 system, solid solutions with M = Ca (0 ≤ x ≤ 2) and M = Pb (0 ≤ x ≤ 1) have been prepared by solid-phase synthesis at 1373 K. At room temperature, the single-phase samples are isostructural to the Ca3(VO4)2 ferroelectri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a782dab37e0692a3fd3de59e68cf2206
https://doi.org/10.1134/s1063783420050054

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Sr9In(VO4)7as a model ferroelectric in the structural family of β-Ca3(PO4)2-type phosphates and vanadates

Autor: Bogdan I. Lazoryak, O. V. Baryshnikova, Dina V. Deyneko, Sergey Yu. Stefanovich, Alexei A. Belik

Publikováno v: RSC Advances. 10:10867-10872

Sr9In(VO4)7 was prepared by a solid-state method at 1270 K in air. This vanadate has the β-Ca3(PO4)2-type structure and crystallizes in polar space group R3c. The structural parameters of Sr9In(VO4)7 were refined by the Rietveld method from laborato

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b838475f62185feb90307ee4240b3c07
https://doi.org/10.1039/c9ra10336h

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Barium-induced effects on structure and properties of β-Ca3(PO4)2-type Ca9Bi(VO4)7

Autor: Vladimir A. Morozov, Nikolai G. Dorbakov, Alexei A. Belik, Sergey Yu. Stefanovich, Vladimir V. Titkov, O. V. Baryshnikova, Bogdan I. Lazoryak

Publikováno v: Journal of Alloys and Compounds. 793:56-64

Ca9–xBaxBi(VO4)7 (0 ≤ x ≤ 1.5) solid solutions with the β-Ca3(PO4)2-type structure were prepared by a solid-state method. Powder X-ray diffraction study of 0 ≤ x ≤ 0.7 showed that Bi3+ and Ba2+ cations were completely incorporated into the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ca74f0d3d7673baad29f7704e2114250
https://doi.org/10.1016/j.jallcom.2019.03.365

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Crystal structure, dielectric, and optical properties of β-calcium orthophosphates heavily doped with ytterbium

Autor: Alexey V. Ishchenko, Ivan I. Leonidov, Bogdan I. Lazoryak, Sergey Yu. Stefanovich, Vladimir A. Morozov, Dina V. Deyneko, Evgeniya S. Zhukovskaya, Alexei A. Belik, O. V. Baryshnikova

Publikováno v: Journal of Alloys and Compounds. 787:1301-1309

Solid solution of Ca10.5–1.5xYbx(PO4)7 (0 ≤ x ≤ 1) was synthesized in the β-Са3(РО4)2-type structure by a standard solid-state method. Second-harmonic generation, differential scanning calorimetry, and dielectric measurements showed the pr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8cda47e8cc57eb3fcb3409f0aaa5fcc3
https://doi.org/10.1016/j.jallcom.2019.02.103

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Ferroelectricity, ionic conductivity and structural paths for large cation migration in Ca10.5−xPbx(VO4)7single crystals,x= 1.9, 3.5, 4.9

Autor: O. V. Baryshnikova, Dina V. Deyneko, D. A. Petrova, Sergey M. Aksenov, Stanislav S. Fedotov, A.N. Shekhovtsov, Peter C. Burns, M. B. Kosmyna, Sergey Yu. Stefanovich, Bogdan I. Lazoryak

Publikováno v: CrystEngComm. 21:1309-1319

Crystal structure, and thermal, dielectric and optical second-harmonic activities were investigated for whitlockite-type Ca8.6Pb1.9(VO4)7 (1), Ca7Pb3.5(VO4)7 (2) and Ca5.6Pb4.9(VO4)7 (3) single crystals. The refinement of the structure revealed split

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4517c816ac7083f2e8fd17a6a21f4b66
https://doi.org/10.1039/c8ce01843j

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Luminescence, structure and antiferroelectric-type phase transition in Ca8ZnEu(PO4)7

Autor: Vladimir A. Morozov, O. V. Baryshnikova, Evgeniya S. Zhukovskaya, Bogdan I. Lazoryak, O. N. Leonidova, Nikolai G. Dorbakov, Dina V. Deyneko, Alexei A. Belik, A.E. Savon

Publikováno v: Materials Research Bulletin. 104:20-26

Photoluminescence excitation and emission spectra of new phosphate Ca8ZnEu(PO4)7 have been investigated. The influence of the composition on the luminescence intensity has been shown. The substitution of Zn2+ for Ca2+ in Ca9Eu(PO4)7 with the formatio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f8720b644595f593921264b4c1f82837
https://doi.org/10.1016/j.materresbull.2018.03.052

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Pure, lithium- or magnesium-doped ferroelectric single crystals of Ca9Y(VO4)7: cation arrangements and phase transitions

Autor: Darya A. Petrova, A.N. Shekhovtsov, Sergey Yu. Stefanovich, E. A. Fortalnova, Bogdan I. Lazoryak, Sergey M. Aksenov, M. B. Kosmyna, O. V. Baryshnikova, Dina V. Deyneko

Publikováno v: Zeitschrift für Kristallographie - Crystalline Materials. 233:453-462

Single crystals of Ca9Y(VO4)7 (1), Ca9Y(VO4)7:Li+ (2) and Ca9Y(VO4)7:Mg2+ (3) were grown by the Czochralski method. Their chemical composition was analyzed by ICP spectroscopy and their crystal structure was examined by single crystal X-ray analysis.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::09489e28e2a58dac40217d5c6281ff70
https://doi.org/10.1515/zkri-2017-2132

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Crystal structure, dielectric and optical properties of β-Ca3(PO4)2-type phosphates Ca9-Zn La(PO4)7:Ho3+

Autor: O. V. Baryshnikova, Kirill N. Boldyrev, Yu. Yu. Dikhtyar, Dina V. Deyneko, V.А. Morozov, А.А. Belik, Bogdan I. Lazoryak

Publikováno v: Journal of Luminescence. 236:118083

A series of new phosphates Ca9-xZnxLa(PO4)7:Ho3+ with the β-Ca3(PO4)2-type structure was synthesized by the solid state route. An intense near infra-red (NIR) emission according to intraconfigural 4f-4f transitions of Ho3+ ions 5I7 – 5I8 (~2 μm)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::36a724e2f8f9e6f5bb001eeda62b763f
https://doi.org/10.1016/j.jlumin.2021.118083

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Tuning of nonlinear optical and ferroelectric properties via the cationic composition of Ca9.5–1.5Bi Cd(VO4)7 solid solutions

Autor: Alexei A. Belik, Vladimir A. Morozov, O. V. Baryshnikova, Bogdan I. Lazoryak, Nikolai G. Dorbakov, S. Yu. Stefanovich, Masahiko Tanaka, Yoshio Katsuya

Publikováno v: Materials & Design, Vol 116, Iss, Pp 515-523 (2017)

Ca9.5–1.5xBixCd(VO4)7 (0 ≤ x ≤ 1) solid solutions with the whitlockite-type structure (SG R3c) were synthesized by a standard solid-state method in air. Structures of Ca9.5–1.5xBixCd(VO4)7 (x = 0.167, 0.5, 0.833) were refined by the Rietveld

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca0247057e9259aae17797383ac34a40
https://doi.org/10.1016/j.matdes.2016.11.107

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