Department of Materials Science and Engineering, Charlottesville, Virginia 22904, USA.
Nano Lett. 2012 May 9;12(5):2367-73. doi: 10.1021/nl3003396. Epub 2012 Apr 10.
CoFe(2)O(4) (CFO)-BiFeO(3) (BFO) nanocomposites are an intriguing option for future memory and logic technologies due to the magnetoelectric properties of the system. However, these nanocomposites form with CFO pillars randomly located within a BFO matrix, making implementation in devices difficult. To overcome this, we present a technique to produce patterned nanocomposites through self-assembly. CFO islands are patterned on Nb-doped SrTiO(3) to direct the self-assembly of epitaxial CFO-BFO nanocomposites, producing square arrays of CFO pillars.
CoFe(2)O(4) (CFO)-BiFeO(3) (BFO) 纳米复合材料由于其系统的磁电性能，是未来存储和逻辑技术的一个有趣选择。然而，这些纳米复合材料形成时，CFO 支柱随机位于 BFO 基质中，使得在器件中的实现变得困难。为了克服这一点，我们提出了一种通过自组装生产图案化纳米复合材料的技术。在 Nb 掺杂 SrTiO(3)上形成 CFO 岛，以引导外延 CFO-BFO 纳米复合材料的自组装，产生 CFO 支柱的正方形阵列。
