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Structure and magnetism of the A site scandium perovskite (Sc0.94Mn0.06)Mn0.65Ni0.35O3 synthesized at high pressure

DOI: 10.1098/rsta.2013.0012 DOI Help
PMID: 24615150 PMID Help

Authors: Chris I. Thomas (University of Liverpool) , Matthew Suchomel (University of Liverpool) , Giap V. Duong (University of Liverpool) , Andrew Fogg (University of Liverpool) , John Claridge (University of Liverpool) , Matthew Rosseinsky (University of Liverpool)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Philosophical Transactions Of The Royal Society A: Mathematical, Physical And Engineering Sciences , VOL 372 (2013) , PAGES 20130012 - 20130012

State: Published (Approved)
Published: March 2014

Abstract: Scandium perovskite (Sc0.94Mn0.06)Mn0.65Ni0.35O3, synthesized at high pressure and high temperature, has a triclinic structure (space group ) at room temperature and ambient pressure with a ?2ap×?2ap×2ap structure with ??90°,??89°,??90°. Magnetic measurements show that the material displays Curie–Weiss behaviour above 50?K with C=2.11?emu?K?mol?1 (?eff=4.11??B per formula unit) and ?=?95.27?K. Bond valence sum analysis of the crystal structure shows that manganese is present in three different oxidation states (+2, +3, +4), with the +2 oxidation state on the A site resulting in a highly tilted perovskite structure (average tilt 21.2° compared with 15.7° calculated for LaCaMnNbO6), giving the formula .

Journal Keywords: Ceramics; High-Pressure Phase; MagneticProperties And Crystal Structure

Subject Areas: Materials


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