Synthesis and characterization of self-assembled oxide vertical interfaces (A12#)

复杂氧化物基界面的原子尺度制造为下一代固态器件应用提供了一个具有许多新颖物理现象和功能特性的迷人平台。然而，从大多数水平界面中提取所需的属性是极具挑战性的，并且受限于有限的响应。在此，我们提出了一种新的材料体系，LaAlO3/LaBO3纳米复合材料（LABO），它具有独特的薄膜结构和多功能。LABO薄膜中自组装纳米柱结构的演变可以控制垂直异质界面排列，因此它可以为提取各种功能特性提供有希望的机会，如电阻开关，奇异磁耦合效应和光电特性。在本项目中，我们将广泛研究LABO纳米复合膜的生长特性（如生长动力学和面内外方向的应变分布）。本研究的最终目标将是解决垂直界面结构与相应功能属性之间的相关性。

Atomic scale fabrication of complex oxide based interfaces provides a fascinating platform with many novel physical phenomena and functional properties for the next generation of solid-state device ap-plications. However, extracting the desired properties from most horizontal interfaces is extremely challenging and is limited to a finite response. Here, we propose a new class of material system, a LaAlO3/LaBO3 nanocomposite (LABO), which has a unique structural formation in thin film regime and multifunctionalities. The evolution of a self-assembled nanopillar structure within LABO films can ena-ble the control of vertical heterointerface arrangements and therefore it can offer promising opportuni-ties to extract a vast variety of functional properties such as resistance switching, exotic magnetic coupling effects, and photoelectric properties. In this project, we will extensively investigate the growth characteristics (e.g. growth kinetics and strain distribution along the in-plane and out-of-plane direc-tions) of LABO nanocomposite films. The ultimate goal of this study will be to address a correlation between vertical interface architecture and the corresponding functional properties.