Synthesis and properties of lanthanide ruthenium(III) oxide perovskites

Alexandra Sinclair, Jennifer A. Rodgers, Craig V. Topping, Martin Misek, Ross D. Stewart, Winfried Kockelmann, Jan-Willem G. Bos, J. Paul Attfield

Research output: Contribution to journalArticle

Abstract

An extensive series of new LnRuO(3) perovskites has been synthesized at high pressure. These ruthenium(III)-based oxides are ruthenium deficient, and high-pressure samples have compositions close to LnRu(0.9)O(3). These phases stabilize ruthenium(III) which is very unusual in oxides. X-ray and neutron powder diffraction studies show that the materials adopt orthorhombic perovskite superstructures in which the RuO6 octahedra are tetragonally compressed. These distortions, and the Mott insulator properties of the materials, are driven by strong spin-orbit coupling.

Original languageEnglish
Pages (from-to)8343-8347
Number of pages5
JournalAngewandte Chemie International Edition
Volume53
Issue number32
DOIs
Publication statusPublished - 4 Aug 2014

Keywords

  • oxides
  • perovskites
  • ruthenium
  • spin-orbit coupling
  • X-ray diffraction
  • MAGNETIC-PROPERTIES
  • HIGH-PRESSURE
  • RARE-EARTH
  • EVOLUTION
  • SR

Cite this

Sinclair, A., Rodgers, J. A., Topping, C. V., Misek, M., Stewart, R. D., Kockelmann, W., Bos, J-W. G., & Attfield, J. P. (2014). Synthesis and properties of lanthanide ruthenium(III) oxide perovskites. Angewandte Chemie International Edition, 53(32), 8343-8347. https://doi.org/10.1002/anie.201403223