Related Experiment Video
Updated: Jul 14, 2026

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals
Published on: August 15, 2018
Electric control of spin helicity in a magnetic ferroelectric
Y Yamasaki1, H Sagayama, T Goto
1Department of Applied Physics, University of Tokyo, Tokyo 113-8656, Japan.
Abstract:
Magnetic ferroelectrics or multiferroics, which are currently extensively explored, may provide a good arena to realize a novel magnetoelectric function. Here we demonstrate the genuine electric control of the spiral magnetic structure in one such magnetic ferroelectric, TbMnO3. A spin-polarized neutron scattering experiment clearly shows that the spin helicity, clockwise or counterclockwise, is controlled by the direction of spontaneous polarization and hence by the polarity of the small electric field applied on cooling.
Related Concept Videos
Ferromagnetism
Magnetic Fields
A magnetic field is defined by the force that a charged particle experiences...
Atomic Nuclei: Nuclear Spin State Overview
Force On A Current Loop In A Magnetic Field
Motional Emf
Atomic Nuclei: Nuclear Relaxation Processes
