Structural and magnetic characterization of iron oxyselenides Ce2O2Fe2OSe2 and Nd2O2Fe2OSe2

McCabe, E.E.; Wills, A.S.; Chapon, L.; Manuel, P.; Evans, J.S.O.

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.

Citation

McCabe, E., Wills, A., Chapon, L., Manuel, P., & Evans, J. (2014). Structural and magnetic characterization of iron oxyselenides Ce2O2Fe2OSe2 and Nd2O2Fe2OSe2. Physical review B, 90(16), Article 165111. https://doi.org/10.1103/physrevb.90.165111

• Journal Article Type: Article
• Publication Date: Oct 9, 2014
• Deposit Date: May 4, 2015
• Publicly Available Date: May 6, 2015
• Journal: Physical Review B
• Print ISSN: 1098-0121
• Electronic ISSN: 1550-235X
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 90
• Issue: 16
• Article Number: 165111
• DOI: https://doi.org/10.1103/physrevb.90.165111