Electrically assisted magnetic recording in multiferroic nanostructures.
We demonstrate the room-temperature control of magnetization reversal with an electric field in an epitaxial nanostructure consisting of ferrimagnetic nanopillars embedded in a ferroelectric matrix. This was achieved by combining a weak, uniform magnetic field with the switching electric field to selectively switch pillars with only one magnetic configuration. On the basis of these experimental results, we propose to use an electric field to assist magnetic recording in multiferroic systems with high perpendicular magnetic anisotropy.
Zavaliche
F
F
Department of Materials Science and Engineering, University of California Berkeley, Berkeley, California 94720, USA. florin.zavaliche@seagate.com
Zhao
T
T
Zheng
H
H
Straub
F
F
Cruz
M P
MP
Yang
P-L
PL
Hao
D
D
Ramesh
R
R
D003460:Crystallization / Q000379:methods; D004574:Electromagnetic Fields; D004867:Equipment Design; D019544:Equipment Failure Analysis; D016247:Information Storage and Retrieval / Q000379:methods*; D058085:Iron Compounds / Q000737:chemistry* / Q000528:radiation effects*; D046911:Macromolecular Substances / Q000737:chemistry; D008280:Magnetics / Q000295:instrumentation*; D008422:Materials Testing; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000295:instrumentation* / Q000379:methods; D010316:Particle Size; D013499:Surface Properties
D058085:Iron Compounds; D046911:Macromolecular Substances