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Hearmon AJ, Fabrizi F, Chapon LC, et al. Electric field control of the magnetic chiralities in ferroaxial multiferroic RbFe(MoO4)2. Phys Rev Lett. 2012;108(23):237201doi: 10.1103/PhysRevLett.108.237201.
Hearmon, A. J., Fabrizi, F., Chapon, L. C., Johnson, R. D., Prabhakaran, D., Streltsov, S. V., Brown, P. J., & Radaelli, P. G. (2012). Electric field control of the magnetic chiralities in ferroaxial multiferroic RbFe(MoO4)2. Physical review letters, 108(23), 237201. https://doi.org/10.1103/PhysRevLett.108.237201
Hearmon, Alexander J, et al. "Electric field control of the magnetic chiralities in ferroaxial multiferroic RbFe(MoO4)2." Physical review letters vol. 108,23 (2012): 237201. doi: https://doi.org/10.1103/PhysRevLett.108.237201
Hearmon AJ, Fabrizi F, Chapon LC, Johnson RD, Prabhakaran D, Streltsov SV, Brown PJ, Radaelli PG. Electric field control of the magnetic chiralities in ferroaxial multiferroic RbFe(MoO4)2. Phys Rev Lett. 2012 Jun 08;108(23):237201. doi: 10.1103/PhysRevLett.108.237201. Epub 2012 Jun 04. PMID: 23003983.
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Phys Rev Lett. 2012 Jun 08;108(23):237201. doi: 10.1103/PhysRevLett.108.237201. Epub 2012 Jun 04.

Electric field control of the magnetic chiralities in ferroaxial multiferroic RbFe(MoO4)2.

Physical review letters

Alexander J Hearmon, Federica Fabrizi, Laurent C Chapon, R D Johnson, Dharmalingam Prabhakaran, Sergey V Streltsov, P J Brown, Paolo G Radaelli

Affiliations

  1. Clarendon Laboratory, Department of Physics, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom. [email protected]

PMID: 23003983 DOI: 10.1103/PhysRevLett.108.237201

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 T(c)=190   K, 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.

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