Templated Self‐Assembly of Functional Oxide Nanocomposites

Abstract

In perovskite/spinel self-assembled oxide nanocomposites, the substrate surface plays a dominant role in determining the final morphology. Topgraphic features, such as pits and trenches, are written in the substrate using either Focused Ion Beam or wet etching through a block co-polymer mask. These features are effective at templating the self-assembly, resulting in a wide range of attainable nano-assemblies.

Magnetoelectricity of CoFe2O4 and tetragonal phase BiFeO3 nanocomposites prepared by pulsed laser deposition

“…In Fig. 5(a), each nanopillar of the CFO/R-phase BFO sample contained only a single magnetic domain, which is similar to previous reports for CFO-BFO self-assembled nanopillars 30,31 . This is because of shape and size effects, where the nanopillar structure restricts the size of the magnetic domains.…”

Self‐Assembled Ordered Three‐Phase Au–BaTiO3–ZnO Vertically Aligned Nanocomposites Achieved by a Templating Method

“…[11] Since very few hyperbolic materials exist naturally, this artificially engineered nanocomposite approach provides a multifunctional platform to realize such materials with applications in subdiffraction imaging, [12] sensing, [13] waveguiding, [14] and also offers an opportunity to achieve coupled electric, magnetic, and optical responses. Previous efforts to grow ordered ceramicmetal nanocomposites have focused on applying patterning techniques such as anodized alumina oxide (AAO) templates, [15] e-beam lithography, [16] focused ion beam (FIB), [17] and substrate nanotemplate. This can be achieved by incorporating a third phase through the three-phase nanocomposite designs by judicious selection of materials and functionalities.…”

Multiferroic nanocomposite fabrication via liquid phase using anodic alumina template

“…Nevertheless, magnetic hysteresis was observed in both in-plane and out-of-plane measurements, proving that our CFO-BTO nanocomposite exhibited ferrimagnetism. The coexistence of ferrimagnetism and nano-periodic structure in the nanocomposite would lead to magnetostatic interactions among CFO nanotubes [13,14]. …”

“…This phenomenon was discussed in terms of off-diagonal magnetostrictive-piezoelectric coupling, which creates staggered in-plane components of the electric polarization. Ross et al [13,14] developed a process for combinatorial PLD using a self-made ultrapure target for each component. They prepared a variety of samples with different periodicities and compositions.…”