Библиографическое описание:Effect of deuteration on phase transitions in (NH-=SUB=-4-=/SUB=-)-=SUB=-3-=/SUB=-VOF-=SUB=-5-=/SUB=- : научное издание / Bogdanov E.V. [et al.]. - Текст : непосредственный // Physics of the Solid State. - 2022. - Т. 64, № 3. - P. 388. - ISSN 1063-7834. - ISSN 1090-6460, DOI 10.21883/pss.2022.03.53195.237.
Аннотация:<jats:p> The (ND<jats:sub>4</jats:sub>)<jats:sub>3</jats:sub>VOF<jats:sub>5</jats:sub> crystal was grown with a high degree of deuteration (D~92%). Structural and thermophysical studies have been carried out, the parameters of phase transitions have been determined. It was found that the deuteration of the ammonium cation in (NH<jats:sub>4</jats:sub>)<jats:sub>3</jats:sub>VOF<jats:sub>5</jats:sub> led to a change in the chemical pressure, which was accompanied by an increase in the unit cell volume and an increase in the phase transition temperatures. The baric coefficients dT<jats:sub>i</jats:sub>/dp were determined and the phase T-p diagram (ND<jats:sub>4</jats:sub>)<jats:sub>3</jats:sub>VOF<jats:sub>5</jats:sub> was constructed. A decrease in the temperature stability of the initial cubic phase Fm3m in (ND<jats:sub>4</jats:sub>)<jats:sub>3</jats:sub>VOF<jats:sub>5</jats:sub>, as well as a wedging out of the intermediate monoclinic phase at a lower pressure as compared to (NH<jats:sub>4</jats:sub>)<jats:sub>3</jats:sub>VOF<jats:sub>5</jats:sub>, was found. Keywords: oxyfluorides, phase transitions, heat capacity, thermal expansion, pressure. </jats:p>
Издательство:Физико-технический институт им. А.Ф. Иоффе РАН, Saint Petersburg
Источник:Physics of the Solid State
Выпуск:Т. 64, № 3
Номера страниц:388
Держатель оригинала документа:Institute of Engineering Systems and Energy, Krasnoyarsk State Agrarian University, Krasnoyarsk, Russia, Kirensky Institute of Physics, Federal Research Center KSC SB, Russian Academy of Sciences, Krasnoyarsk, Russia, Siberian Federal University, Institute of Engineering Physics and Radio Electronics, Krasnoyarsk, Russia
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