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Spontaneous Ordering, Strain Control, and Multifunctionality in Vertical Nanocomposite Heteroepitaxial Films

机译:垂直纳米复合异质外延薄膜的自发有序,应变控制和多功能性

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摘要

Two-phase nanocomposite heteroepitaxial films with vertical microstructures hold great promise for various (multi)functional (e.g., multiferroic) electronic device applications. With the aim of creating addressable arrays, it is necessary to form spontaneously ordered structures over large areas. However, such structures have not, so far, been demonstrated. We have recently produced remarkable spontaneously ordered phase assemblies and find that these structures form concomitantly with 2-D vertical strain control, i.e., strain in the 2 phases is controlled along the vertical interface between them rather than being influenced by the substrate. In this paper, we report on our findings in the BiFeO3 and BaTiO3 ferroelectric systems.
机译:具有垂直微结构的两相纳米复合异质外延膜在各种(多功能)(例如多铁性)电子设备应用中具有广阔的前景。为了创建可寻址阵列,有必要在大面积上形成自发有序的结构。但是,到目前为止,尚未证明这种结构。我们最近已经产生了非凡的自发有序的相组件,并发现这些结构与二维垂直应变控制同时形成,即,沿着两相之间的垂直界面控制了两相中的应变,而不是受衬底的影响。在本文中,我们报告了在BiFeO3和BaTiO3铁电体系中的发现。

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