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Effect of deuteration on phase transitions in (NH-=SUB=-4-=/SUB=-)-=SUB=-3-=/SUB=-VOF-=SUB=-5-=/SUB=- : научное издание

Описание

Тип публикации: статья из журнала

Год издания: 2022

Идентификатор 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<jaПоказать полностьюts: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>

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Издание

Журнал: Physics of the Solid State

Выпуск журнала: Т. 64, № 3

Номера страниц: 388

ISSN журнала: 10637834

Место издания: Saint Petersburg

Издатель: Физико-технический институт им. А.Ф. Иоффе РАН

Персоны

  • Bogdanov E.V. (Institute of Engineering Systems and Energy, Krasnoyarsk State Agrarian University, Krasnoyarsk, Russia)
  • Bondarev V.S. (Siberian Federal University, Institute of Engineering Physics and Radio Electronics, Krasnoyarsk, Russia)
  • Gorev M.V. (Siberian Federal University, Institute of Engineering Physics and Radio Electronics, Krasnoyarsk, Russia)
  • Molokeev M.S. (Siberian Federal University, Institute of Engineering Physics and Radio Electronics, Krasnoyarsk, Russia)
  • Flerov I.N. (Siberian Federal University, Institute of Engineering Physics and Radio Electronics, Krasnoyarsk, Russia)

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