Tolerance Factor for Huntite-Family Compounds

Описание

Тип публикации: статья из журнала

Год издания: 2020

Идентификатор DOI: 10.1134/S1063783420110190

Ключевые слова: crystal structure, huntites, phase transition, structural stability, tolerance factor

Аннотация: Abstract: 85 RM3(BO3)4 (R is the rare-earth element (Y, La–Lu) and M = Al, Sc, Cr, Fe, or Ga) compounds with the huntite structure have been analyzed. The analysis of the structures has made it possible to determine critical atomic displacements during the phase transition R32 ↔ P3121 and establish how these critical displacements Показать полностьюcan be controlled by varying the ionic radii. A tolerance factor has been derived and its threshold value below which the structure is stable in the R32 phase and above it, in the distorted P3121 phase, has been found. The formula has been tested on more than 30 huntite-family compounds and good agreement has been obtained. Therefore, it can be used with confidence to predict new compounds. At the moment, the tolerance factor has allowed us to establish previously unknown regularities in huntites. © 2020, Pleiades Publishing, Ltd.

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Издание

Журнал: Physics of the Solid State

Выпуск журнала: Vol. 62, Is. 11

Номера страниц: 2058-2062

ISSN журнала: 10637834

Издатель: Pleiades journals

Персоны

  • Molokeev M.S. (Siberian Fed Univ, Krasnoyarsk 660041, Russia; Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia)
  • Kuznetsov S.O. (Siberian Fed Univ, Krasnoyarsk 660041, Russia)

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