title: Synthesis and properties of lanthanide ruthenium(III) oxide perovskites.
abstract: An extensive series of new LnRuO3 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)O3. 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.
authors: Centre for Science at Extreme Conditions (CSEC) and School of Chemistry, University of Edinburgh, Mayfield Road, Edinburgh EH9 3JZ (UK).
authors: Alexandra
authors: A
authors: Sinclair
authors: Jennifer A
authors: JA
authors: Rodgers
authors: Craig V
authors: CV
authors: Topping
authors: Martin
authors: M
authors: Míšek
authors: Ross D
authors: RD
authors: Stewart
authors: Winfried
authors: W
authors: Kockelmann
authors: Jan-Willem G
authors: JW
authors: Bos
authors: J Paul
authors: JP
authors: Attfield
keywords: X-ray diffraction; oxides; perovskites; ruthenium; spin-orbit coupling