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A polar corundum oxide displaying weak ferromagnetism at room temperature
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(2012) A polar corundum oxide displaying weak ferromagnetism at room temperature. Journal of the American Chemical Society, Vol.134 (No.8). pp. 3737-3747. doi:10.1021/ja208395z ISSN 0002-7863.
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Official URL: http://dx.doi.org/10.1021/ja208395z
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).
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Journal or Publication Title: | Journal of the American Chemical Society | ||||
Publisher: | American Chemical Society | ||||
ISSN: | 0002-7863 | ||||
Official Date: | 2012 | ||||
Dates: |
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Volume: | Vol.134 | ||||
Number: | No.8 | ||||
Page Range: | pp. 3737-3747 | ||||
DOI: | 10.1021/ja208395z | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published |
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