A study of structural non-stoichiometry with respect to oxygen in RBaCo4O7+x single crystals

N. V. Podberezskaya; V. Yu Komarov; M. Yu Kameneva; L. P. Kozeeva; A. N. Lavrov

doi:10.1134/S0022476617050110

A study of structural non-stoichiometry with respect to oxygen in RBaCo₄O_7+x single crystals

N. V. Podberezskaya, V. Yu Komarov, M. Yu Kameneva, L. P. Kozeeva, A. N. Lavrov

Результат исследования: Научные публикации в периодических изданиях › статья › рецензирование

Аннотация

Impurity-free RBaCo₄O_7+x (R = Y, Lu) crystals are grown and the evolution of their structure with varying oxygen concentration in the range 0 ≤ x ≤ 1.3 is studied. The structural features of the studied samples required to develop an extended strategy of the X-ray crystallographic experiment, which made it possible to obtain more accurate data on unit cell parameters and additional information on the features of superstructure modulation and diffuse scattering, along with the phase composition of crystalline samples. A crystal chemical analysis of the known structural models of RBaCo₄O_7+x is performed and suggestions are made about possible structural changes occurring when the oxygen concentration increases up to the limit.

Язык оригинала	английский
Страницы (с-по)	930-939
Число страниц	10
Журнал	Journal of Structural Chemistry
Том	58
Номер выпуска	5
DOI	https://doi.org/10.1134/S0022476617050110
Состояние	Опубликовано - 1 сен 2017

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10.1134/S0022476617050110

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title = "A study of structural non-stoichiometry with respect to oxygen in RBaCo4O7+x single crystals",

abstract = "Impurity-free RBaCo4O7+x (R = Y, Lu) crystals are grown and the evolution of their structure with varying oxygen concentration in the range 0 ≤ x ≤ 1.3 is studied. The structural features of the studied samples required to develop an extended strategy of the X-ray crystallographic experiment, which made it possible to obtain more accurate data on unit cell parameters and additional information on the features of superstructure modulation and diffuse scattering, along with the phase composition of crystalline samples. A crystal chemical analysis of the known structural models of RBaCo4O7+x is performed and suggestions are made about possible structural changes occurring when the oxygen concentration increases up to the limit.",

keywords = "cobaltates, oxygen non-stoichiometry, single crystals, structural analysis, structural models, X-ray diffraction data processing, SWEDENBORGITE, TEMPERATURE, YBACO4O7+DELTA",

author = "Podberezskaya, {N. V.} and Komarov, {V. Yu} and Kameneva, {M. Yu} and Kozeeva, {L. P.} and Lavrov, {A. N.}",

year = "2017",

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language = "English",

volume = "58",

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journal = "Journal of Structural Chemistry",

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A study of structural non-stoichiometry with respect to oxygen in RBaCo₄O_7+x single crystals. / Podberezskaya, N. V.; Komarov, V. Yu; Kameneva, M. Yu; Kozeeva, L. P.; Lavrov, A. N.

В: Journal of Structural Chemistry, Том 58, № 5, 01.09.2017, стр. 930-939.

Результат исследования: Научные публикации в периодических изданиях › статья › рецензирование

TY - JOUR

T1 - A study of structural non-stoichiometry with respect to oxygen in RBaCo4O7+x single crystals

AU - Podberezskaya, N. V.

AU - Komarov, V. Yu

AU - Kameneva, M. Yu

AU - Kozeeva, L. P.

AU - Lavrov, A. N.

PY - 2017/9/1

Y1 - 2017/9/1

N2 - Impurity-free RBaCo4O7+x (R = Y, Lu) crystals are grown and the evolution of their structure with varying oxygen concentration in the range 0 ≤ x ≤ 1.3 is studied. The structural features of the studied samples required to develop an extended strategy of the X-ray crystallographic experiment, which made it possible to obtain more accurate data on unit cell parameters and additional information on the features of superstructure modulation and diffuse scattering, along with the phase composition of crystalline samples. A crystal chemical analysis of the known structural models of RBaCo4O7+x is performed and suggestions are made about possible structural changes occurring when the oxygen concentration increases up to the limit.

AB - Impurity-free RBaCo4O7+x (R = Y, Lu) crystals are grown and the evolution of their structure with varying oxygen concentration in the range 0 ≤ x ≤ 1.3 is studied. The structural features of the studied samples required to develop an extended strategy of the X-ray crystallographic experiment, which made it possible to obtain more accurate data on unit cell parameters and additional information on the features of superstructure modulation and diffuse scattering, along with the phase composition of crystalline samples. A crystal chemical analysis of the known structural models of RBaCo4O7+x is performed and suggestions are made about possible structural changes occurring when the oxygen concentration increases up to the limit.

KW - cobaltates

KW - oxygen non-stoichiometry

KW - single crystals

KW - structural analysis

KW - structural models

KW - X-ray diffraction data processing

KW - SWEDENBORGITE

KW - TEMPERATURE

KW - YBACO4O7+DELTA

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M3 - Article

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JO - Journal of Structural Chemistry

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