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

复杂氧化物界面的原子尺度制备为下一代固态器件应用提供了一个具有许多新物理现象和功能特性的迷人平台。然而，从大多数水平界面提取所需的属性是极具挑战性的，并且仅限于有限的响应。在这里，我们提出了一类新的材料系统，LaAlO 3/LaBO 3纳米复合材料（LABO），它具有独特的结构形成的薄膜制度和多功能性。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的排列，因此可以提供有希望的机会来提取各种各样的功能特性，如电阻开关，奇异的磁耦合效应和光电特性。在本计画中，我们将广泛地研究LABO奈米复合薄膜的成长特性（例如：成长动力学与应变分布沿着面内与面外方向）。本研究的最终目标将是解决垂直界面结构和相应的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.