E-viri
Recenzirano
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Zavaliche, F; Zheng, H; Mohaddes-Ardabili, L; Yang, S. Y; Zhan, Q; Shafer, P; Reilly, E; Chopdekar, R; Jia, Y; Wright, P; Schlom, D. G; Suzuki, Y; Ramesh, R
Nano letters, 09/2005, Letnik: 5, Številka: 9Journal Article
We present direct evidence for room-temperature magnetization reversal induced by an electric field in epitaxial ferroelectric BiFeO3−ferrimagnetic CoFe2O4 columnar nanostructures. Piezoelectric force microscopy and magnetic force microscopy were used to locally image the coupled piezoelectric-magnetic switching. Quantitative analyses give a perpendicular magnetoelectric susceptibility of ∼1.0 × 10-2 G cm/V. The observed effect is due to the strong elastic coupling between the two ferroic constituents as the result of the three-dimensional heteroepitaxy.
