Abstract
Polarized neutron scattering experiments reveal that type-II multiferroics allow for controlling the spin chirality by external electric fields even in the absence of long-range multiferroic order. In the two prototype compounds and , chiral magnetism associated with soft overdamped electromagnons can be observed above the long-range multiferroic transition temperature , and it is possible to control it through an electric field. While exhibits chiral correlations only in a tiny temperature interval above , in chiral magnetism can be observed over several kelvin up to the lock-in transition, which is well separated from .
- Received 24 March 2017
DOI:https://doi.org/10.1103/PhysRevLett.119.177201
© 2017 American Physical Society
Physics Subject Headings (PhySH)
Synopsis
Chiral Magnetism Under Electric Control
Published 26 October 2017
An applied electric field can be used to control a twisted form of magnetic ordering inside small domains of multiferroic materials.
See more in Physics