| Literature DB >> 20112922 |
Xingsen Gao1, Brian J Rodriguez, Lifeng Liu, Balaji Birajdar, Daniel Pantel, Michael Ziese, Marin Alexe, Dietrich Hesse.
Abstract
A nanofabrication technique combining pulsed laser deposition and a nanoporous anodic aluminum oxide membrane mask is being proposed to prepare various types of multiferroic nanocomposites, viz. periodically ordered CoFe(2)O(4) dots covered by a continuous Pb(Zr,Ti)O(3) layer, Pb(Zr,Ti)O(3) dots covered with CoFe(2)O(4), and Pb(Zr,Ti)O(3)/CoFe(2)O(4) bilayer heterostructure dots. By properly tuning the processing parameters, epitaxial nanodot-matrix composites can be obtained. For the composite consisting of CoFe(2)O(4) nanostructures covered by a Pb(Zr,Ti)O(3) film, an unexpected out-of-plane magnetic easy axis induced by the top Pb(Zr,Ti)O(3) layer and a uniform microdomain structure can be observed. The nanocomposites tested by piezoresponse force microscopy (PFM) exhibit strong piezoelectric signals, and they also display magnetoelectric coupling revealed by magnetic-field dependent capacitance measurement.Entities:
Year: 2010 PMID： 20112922 DOI： 10.1021/nn9012934
Source DB: PubMed Journal: ACS Nano ISSN： 1936-0851 Impact factor: 15.881