Electric field control of the magnetic chiralities in ferroaxial multiferroic RbFe(MoO4)2
ArXiv 1202.2317 (2012)
Abstract:
The coupling of magnetic chiralities to the ferroelectric polarisation in multiferroic RbFe(MoO$_4$)$_2$ is investigated by neutron spherical polarimetry. Because of the axiality of the crystal structure below $T_\textrm{c}$ = 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 generalised 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.Spin waves and revised crystal structure of honeycomb iridate Na2IrO3
(2012)
Helical scattering signatures of strain and electronic textures in YbFe2O4 from three-dimensional reciprocal-space imaging
Physical Review B American Physical Society (APS) 85:1 (2012) 014115
Giant Improper Ferroelectricity in the Ferroaxial Magnet CaMn7O12
PHYSICAL REVIEW LETTERS 108:6 (2012) ARTN 067201
Helical scattering signatures of strain and electronic textures in YbFe2O4 from three-dimensional reciprocal-space imaging
PHYSICAL REVIEW B 85:1 (2012) ARTN 014115