TY - JOUR
KW - Ferromagnetism
KW - Parameter estimation
KW - Logic devices
KW - Magnetic properties
KW - Magnetoelectric effects
KW - Logic device applications
KW - Magnetoelectric multiferroics
AU - Y.-H Chu
AU - L.W Martin
AU - M.B Holcomb
AU - M Gajek
AU - S.-J Han
AU - Q He
AU - N Balke
AU - C.-H Yang
AU - D Lee
AU - W Hu
AU - Q Zhan
AU - P.-L Yang
AU - A Fraile-Rodríguez
AU - A Scholl
AU - S.X Wang
AU - Ramamoorthy Ramesh
AB - Multiferroics are of interest for memory and logic device applications, as the coupling between ferroelectric and magnetic properties enables the dynamic interaction between these order parameters. Here, we report an approach to control and switch local ferromagnetism with an electric field using multiferroics. We use two types of electromagnetic coupling phenomenon that are manifested in heterostructures consisting of a ferromagnet in intimate contact with the multiferroic BiFeO3. The first is an internal, magnetoelectric coupling between antiferromagnetism and ferroelectricity in the BiFeO3 film that leads to electric-field control of the antiferromagnetic order. The second is based on exchange interactions at the interface between a ferromagnet (Co0.9Fe0.1) and the antiferromagnet. We have discovered a one-to-one mapping of the ferroelectric and ferromagnetic domains, mediated by the colinear coupling between the magnetization in the ferromagnet and the projection of the antiferromagnetic order in the multiferroic. Our preliminary experiments reveal the possibility to locally control ferromagnetism with an electric field. © 2008 Nature Publishing Group.
BT - Nature Materials
DO - 10.1038/nmat2184
LA - eng
M1 - 6
N1 - cited By 1012
N2 - Multiferroics are of interest for memory and logic device applications, as the coupling between ferroelectric and magnetic properties enables the dynamic interaction between these order parameters. Here, we report an approach to control and switch local ferromagnetism with an electric field using multiferroics. We use two types of electromagnetic coupling phenomenon that are manifested in heterostructures consisting of a ferromagnet in intimate contact with the multiferroic BiFeO3. The first is an internal, magnetoelectric coupling between antiferromagnetism and ferroelectricity in the BiFeO3 film that leads to electric-field control of the antiferromagnetic order. The second is based on exchange interactions at the interface between a ferromagnet (Co0.9Fe0.1) and the antiferromagnet. We have discovered a one-to-one mapping of the ferroelectric and ferromagnetic domains, mediated by the colinear coupling between the magnetization in the ferromagnet and the projection of the antiferromagnetic order in the multiferroic. Our preliminary experiments reveal the possibility to locally control ferromagnetism with an electric field. © 2008 Nature Publishing Group.
PB - Nature Publishing Group
PY - 2008
SP - 478
EP - 482
T2 - Nature Materials
TI - Electric-field control of local ferromagnetism using a magnetoelectric multiferroic
VL - 7
SN - 14761122
ER -