Journal Article

PreJuSER-20381

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Competing Ferri- and Antiferromagnetic Phases in Geometrically Frustrated LuFe2O4

de Groot, J.FZJ* ; Marty, K. ; Lumsden, M. D. ; Christianson, A. D. ; Nagler, S. E. ; Adiga, S.FZJ* ; Borghols, W. J. H.FZJ* ; Schmalzl, K.FZJ* ; Yamani, Z. ; Bland, S. R. ; de Souza, R. ; Staub, U. ; Schweika, W.FZJ* ; Su, Y.FZJ* ; Angst, M.FZJ*

2012
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/7440  doi:10.1103/PhysRevLett.108.037206

Abstract: We present a detailed study of magnetism in LuFe2O4, combining magnetization measurements with neutron and soft x-ray diffraction. The magnetic phase diagram in the vicinity of T-N involves a metamagnetic transition separating an antiferro- and a ferrimagnetic phase. For both phases the spin structure is refined by neutron diffraction. Observed diffuse magnetic scattering far above T-N is explained in terms of near degeneracy of the magnetic phases.

Keyword(s): Basic research (1st) ; Others (1st) ; Magnetism (2nd) ; J

Note: We thank R. P. Hermann, A. B. Harris, J. Voigt, Th. Bruckel, and R. Puzniak for useful discussions. Support from the initiative and networking fund of Helmholtz Association by funding the Helmholz University Young Investigator Group "Complex Ordering Phenomena in Multifunctional Oxides'' is gratefully acknowledged. Work at the S. L. S. was supported by the Swiss National Science Foundation NCCR MaNEP Project. Work at ORNL was supported by the Scientific User Facilities Division, Office of Basic Energy Sciences, US Department of Energy (DOE). M. A. thanks D. Mandrus, B. C. Sales, W. Tian, and R. Jin for their assistance during sample-synthesis, also supported by US-DOE.

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Contributing Institute(s):

1. Streumethoden (PGI-4)
2. Streumethoden (JCNS-2)
3. Jülich-Aachen Research Alliance - Fundamentals of Future Information Technology (JARA-FIT)
4. JCNS-FRM-II (JCNS (München) ; Jülich Centre for Neutron Science JCNS (München) ; JCNS-FRM-II)

Research Program(s):

1. Grundlagen für zukünftige Informationstechnologien (FUEK412) (FUEK412)
2. 544 - In-house Research with PNI (POF2-544) (POF2-544)

Experiment(s):

1. DNS: Diffuse scattering neutron time of flight spectrometer (NL6S)

Appears in the scientific report 2012

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Database coverage:
; ; ; Current Contents - Social and Behavioral Sciences ; JCR ; NCBI Molecular Biology Database ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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