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Structural and magnetic characterization of iron oxyselenides Ce2O2Fe2OSe2 and Nd2O2Fe2OSe2.

McCabe, E. E. and Wills, A. S. and Chapon, L. and Manuel, P. and Evans, J. S. O. (2014) 'Structural and magnetic characterization of iron oxyselenides Ce2O2Fe2OSe2 and Nd2O2Fe2OSe2.', Physical review B., 90 (16). p. 165111.

Abstract

We present here an investigation of the magnetic ordering in the Mott insulating oxyselenide materials Ln2O2Fe2OSe2 (Ln=Ce, Nd). Neutron powder diffraction data are consistent with a noncollinear multi-k ordering on the iron sublattice structure and analysis indicates a reduced magnetic correlation length perpendicular to the [Fe2O]2+ layers. The magnetic role of the Ln3+ cations is investigated and Ce3+ moments are found to order at T≤16 K.

Item Type:Article
Full text:(NA) Not Applicable
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Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1103/PhysRevB.90.165111
Publisher statement:Reprinted with permission from the American Physical Society: Physical Review B 90, 165111 © 2014 by the American Physical Society. Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed, published, or sold in whole or part, without prior written permission from the American Physical Society.
Date accepted:No date available
Date deposited:No date available
Date of first online publication:October 2014
Date first made open access:No date available

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