UCL logo

UCL Discovery

UCL home » Library Services » Electronic resources » UCL Discovery

A polar corundum oxide displaying weak ferromagnetism at room temperature.

Li, MR; Adem, U; McMitchell, SR; Xu, Z; Thomas, CI; Warren, JE; ... Claridge, JB; + view all (2012) A polar corundum oxide displaying weak ferromagnetism at room temperature. J Am Chem Soc , 134 (8) 3737 - 3747. 10.1021/ja208395z.

Full text not available from this repository.

Abstract

Combining long-range magnetic order with polarity in the same structure is a prerequisite for the design of (magnetoelectric) multiferroic materials. There are now several demonstrated strategies to achieve this goal, but retaining magnetic order above room temperature remains a difficult target. Iron oxides in the +3 oxidation state have high magnetic ordering temperatures due to the size of the coupled moments. Here we prepare and characterize ScFeO(3) (SFO), which under pressure and in strain-stabilized thin films adopts a polar variant of the corundum structure, one of the archetypal binary oxide structures. Polar corundum ScFeO(3) has a weak ferromagnetic ground state below 356 K-this is in contrast to the purely antiferromagnetic ground state adopted by the well-studied ferroelectric BiFeO(3).

Type:Article
Title:A polar corundum oxide displaying weak ferromagnetism at room temperature.
Location:United States
DOI:10.1021/ja208395z
Language:English
Keywords:Aluminum Oxide, Ferric Compounds, Magnetic Phenomena, Membranes, Artificial, Oxides, Scandium, Temperature
UCL classification:UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Chemistry

Archive Staff Only: edit this record