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Electric Field Control of the Magnetic Chiralities in Ferroaxial Multiferroic RbFe(MoO4)(2)

DOI: 10.1103/PhysRevLett.108.237201 DOI Help
PMID: 23003983 PMID Help

Authors: Alex Hearmon (University of Oxford, Diamond Light Source) , Federica Fabrizi (University of Oxford) , Laurent Chapon (ISIS) , Roger Johnson (University of Oxford) , Dharmalingam Prabhakaran (University of Oxford) , Sergey V. Streltsov (Russian Academy of Sciences, Russia) , P. J. Brown (Institute Laue-Langevin, France) , Paolo Radaelli (University of Oxford)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Physical Review Letters , VOL 108 (23)

State: Published (Approved)
Published: June 2012

Open Access Open Access

Abstract: The coupling of magnetic chiralities to the ferroelectric polarization in multiferroic RbFe(MoO4)2 is investigated by neutron spherical polarimetry. Because of the axiality of the crystal structure below Tc=190K, helicity and triangular chirality are symmetric-exchange coupled, explaining the onset of the ferroelectricity in this proper-screw magnetic structure—a mechanism that can be generalized to other systems with ferroaxial distortions in the crystal structure. With an applied electric field, we demonstrate control of the chiralities in both structural domains simultaneously

Subject Areas: Physics

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Added On: 08/10/2012 14:25

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