"Direct Observation of Magnetization Reversal by Electric Field at
Room Temperature in Co-Substituted Bismuth Ferrite Thin Film"
https://pubs.acs.org/doi/10.1021/acs.nanolett.8b04765
Abstract: "Using the electric field to manipulate the magnetization of
materials is a potential way of making low-power-consumption
nonvolatile magnetic memory devices. Despite concentrated effort in
the last 15 years on magnetic multilayers and magnetoelectric
multiferroic thin films, there has been no report on the reversal of
out-of-plane magnetization by an electric field at room temperature
without the aid of an electric current. Here, we report direct
observation of out-of-plane magnetization reversal at room temperature
by magnetic force microscopy after electric polarization switching of
cobalt-substituted bismuth ferrite thin film grown on (110)o-oriented
GdScO3 substrate. A striped pattern of ferroelectric and weakly
ferromagnetic domains was preserved after reversal of the out-of-plane
electric polarization.
Keywords: bismuth ferrite; magnetoelectric coupling; Multiferroic
material; weak ferromagnetism"