Local probing of magnetoelectric coupling and magnetoelastic control of switching in BiFeO3-CoFe2O4 thin-film nanocomposite

Abstract

We report on the combination of piezoresponse force microscopy (PFM), magnetic force microscopy, and local ferroelectric switching with magnetic field for the study of a thin-film magnetoelectric (ME) nanocomposite. The collection of PFM under an applied variable magnetic field within a polycrystalline perovskite-spinel BiFeO3-CoFe2O4 (BFO-CFO) 0-3 type thin-film nanocomposite enables quantitative and proximal measurement of magnetoelastic strain-driven ME response. Combination of measurement of the as-grown strain state with local measurements of microstructure and macroscopic magnetization permits local mapping of ME coupling. (C) 2013 AIP Publishing LLC.

Description
Keywords
MULTIFERROIC NANOSTRUCTURES, DEPOSITION, ANISOTROPY, DESIGN, Physics, Applied, Physics
Citation
Yan, F., Chen, G., Lu, L., Finkel, P., Spanier, J. (2013): Local probing of magnetoelectric coupling and magnetoelastic control of switching in BiFeO3-CoFe2O4 thin-film nanocomposite. Applied Physics Letters, 103 (4). DOI: 10.1063/1.4816793