Structural and magnetic characterization of iron oxyselenides Ce2 O2 Fe2 OSe2 and Nd2 O2 Fe2 OSe2

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

Publication date

January 2014

DOI

10.1103/PhysRevB.90.165111

Publisher

American Physical Society (APS)

ISSN

1098-0121

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 Tâ?¤16 K

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Structural and magnetic characterization of iron oxyselenides Ce2 O2 Fe2 OSe2 and Nd2 O2 Fe2 OSe2

Abstract

Extracted data

Structural and magnetic characterization of iron oxyselenides Ce2 O2 Fe2 OSe2 and Nd2 O2 Fe2 OSe2

Abstract

Extracted data

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