Journal Article

PreJuSER-8901

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Electric-field control of the chiral magnetism of multiferroic MnWO4 as seen via polarized neutron diffraction

Finger, T. ; Senff, D. ; Schmalzl, K.FZJ* ; Schmidt, W.FZJ* ; Regnault, L. P. ; Becker, P. ; Bohaty, L. ; Braden, M.

2010
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/11000  doi:10.1103/PhysRevB81.054430

Abstract: The chiral components in the magnetic order in multiferroic MnWO4 have been studied by neutron diffraction using spherical polarization analysis as a function of temperature and of external electric field. We show that sufficiently close to the ferroelectric transition at T = 12.3 K it is possible to switch the chiral component by applying moderate electric fields at constant temperature. Full hysteresis cycles can be observed which indicate strong pinning of the magnetic order. MnWO4, furthermore, exhibits a magnetoelectric memory effect across heating into the paramagnetic and paraelectric phase.

Keyword(s): J

Note: This work was supported by the Deutsche Forschungsgemeinschaft through the Sonderforschungsbereich 608.

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Contributing Institute(s):

1. Streumethoden (IFF-4)
2. Neutronenstreuung (IFF-5)
3. Jülich-Aachen Research Alliance - Fundamentals of Future Information Technology (JARA-FIT)
4. JCNS (Jülich Centre for Neutron Science JCNS (JCNS) ; JCNS)

Research Program(s):

1. BioSoft: Makromolekulare Systeme und biologische Informationsverarbeitung (P45)
2. Großgeräte für die Forschung mit Photonen, Neutronen und Ionen (PNI) (P55)

Appears in the scientific report 2010

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