High pressure RHEED for PLD chamber/ Système RHEED à haute pression pour une chambre d'ablation laser

该拨款申请建议在现有的定制设计的脉冲激光烧蚀沉积（PLD）室上获取和安装高压反射高能电子衍射（RHEED）系统。这种原位表征工具将有助于在薄膜生长过程中监测其表面。所获得的信息将使我们能够更好地控制生长过程，以显着提高外延薄膜的质量，甚至针对材料的特定终止层。因此，它将在多层电子器件中沉积的两种连续材料之间的界面控制中发挥重要作用，这些材料可能表现出奇异的新行为。所有的项目都将涉及到氧化物基薄膜。其中一些项目的目标是高温超导性的起源，以及在将其与其他氧化物（如巨磁阻锰矿）结合时，将其利用到简单电子元件中的可能性。例如，我们将尝试培育具有人工诱导超导性的多层材料。

This grant application proposes the acquisition and installation of a high pressure Reflection High-Energy Electron Diffraction (RHEED) system onto an existing custom-designed pulsed-laser ablation deposition (PLD) chamber. This in-situ characterisation tool will help monitor the surface of thin films during their growth. The information obtained will allow us to better control the growth processes in order to improve significantly the quality of the epitaxial thin films and even to target specific termination layers of the materials. Thus, it will play a major role in the control of the interface between two successive materials deposited in multilayered electronic devices that could exhibit exotic novel behaviours. All the projects will involve oxide-based thin films. Some of these projects target the origin of high temperature superconductivity and their possible harnessing into simple electronic components when combining them to other oxide materials like colossal magnetoresistance manganites. For example, we will attempt to grow multilayers with artificially-induced superconductivity.