Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций

Конференция: European Meeting on Ferroelectricity (EMF); Lausanne, SWITZERLAND; Lausanne, SWITZERLAND

Год издания: 2020

Идентификатор DOI: 10.1080/00150193.2020.1713348

Ключевые слова: fluorides, raman spectra, lattice disordering

Аннотация: In order to clarify ordering mechanisms of ferroic phase transitions in double fluoride salts (NH4)(3)SnF7, (NH4)(3)GeF7 and (NH4)(3)TiF7, their Raman scattering spectra have been studied in wide ranges of frequencies (20-3400 cm(-1)) and temperatures (8-410 K). Substitution of the central ion in the octahedron groups was found to Показать полностьюchange not only the phase transition types and sequences, but to modify the types of structural disorder as well, which is a special feature of these high-symmetry fluoride crystals.

Журнал: FERROELECTRICS

Выпуск журнала: Vol. 568, Is. 1

Номера страниц: 185-190

ISSN журнала: 00150193

Место издания: ABINGDON

Издатель: TAYLOR & FRANCIS LTD

• Gerasimova Y.V (Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk, Russia; Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk, Russia)
• Krylov A.S. (Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk, Russia)
• Vtyurin A.N. (Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk, Russia; Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk, Russia)
• Laptash N.M. (RAS, Far Eastern Branch, Inst Chem, Vladivostok, Russia)
• Krylova S.N. (Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk, Russia)

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