Effect of size factor on the Ruddlesden-Popper single-slab compounds structure features

Authors

  • Yuriy Alexandrovich Titov Department of Chemistry, Taras Shevchenko National University of Kyiv
  • Nadegda Nikolaevna Belyavina Department of Physics, Taras Shevchenko National University of Kyiv
  • Mikola Semenovich Slobodyanik Department of Chemistry, Taras Shevchenko National University of Kyiv
  • Olesya Ivanovna Nakonechna Department of Physics, Taras Shevchenko National University of Kyiv
  • Nataliia Yurievna Strutynska Department of Chemistry, Taras Shevchenko National University of Kyiv

DOI:

https://doi.org/10.17721/fujcV7I1P10-15

Keywords:

Ruddlesden-Popper compound, solid solution, X-ray powder diffraction method, slab perovskite-like structure

Abstract

Character of influence of the strontium atoms replacement by smaller atoms of calcium on structure features of the Ruddlesden-Popper (Sr,Ca)LaScO4 (A2BO4) single-slab compoundis established. Structure of phase with a maximum degree of replacementhas determined by the Rietveld method. It is shown that such type of substitution increases a degree of AO9 interblock polyhedra deformation, mutual inclination of the BO6 octahedra and a decrease of A - О interblock bond. Presence of structure changes is the precondition for regulation of structural-dependent features of the materials on the base of scandates alkaline-earth and rare earth metals.

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Published

2019-07-30

Issue

Vol. 7 No. 1 (2019)

Section

Articles

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