MRI: Acquisition of a High Pressure Oxygen Sputtering System for Research and Education in Oxide Heterostructures

MRI：购买高压氧溅射系统用于氧化物异质结构的研究和教育

• 批准号: 0821256
• 负责人: Christopher Leighton
• 金额: $ 16.15万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-09-01 至 2010-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0821256&HistoricalAwards=false
• 关键词: MRI; Acquisition; Pressure; Oxygen; Sputtering

TECHNICAL ABSTRACT: The University of Minnesota proposes acquisition of a multi-user, high-throughput, oxide thin film deposition system to fuel a large interdisciplinary research effort in the field of oxide heterostructures. This effort spans numerous areas of basic and applied research including magnetism, superconductivity, correlated electrons, mechanical behavior, solid-state chemistry, and magneto-optics. The users of the instrument include four primary principal investigators, a total of seven principal investigators (from four departments), an external national laboratory collaborator, and ?î 15 undergraduates, graduate students, and post-docs. The proposed instrument employs high pressure oxygen sputtering, a recently developed method for fabrication of epitaxial multilayered oxide films with exceptional control over crystalline and interfacial perfection. Following acquisition of the system (the first of its kind in the US) it will be employed in a wide variety of collaborative research including; (i) spin transport and interface magnetism in perovskites, (ii) high-k dielectrics for electrostatically tuned charge doping in organic semiconductors, high temperature superconductors, and perovskite magnets, (iii) fabrication of integrated magneto-optical devices, and (iv) atomic resolution electron microscopy of oxide interfaces. Broader impacts are considerable and include the potential societal benefits associated with advancement in this technologically important area, broad dissemination of important basic research results, enhancement of the inter-disciplinary educational opportunities provided to young researchers, education of a skilled workforce in this technologically important area, and essential improvements in instrumentation infrastructure.NON-TECHNICAL ABSTRACT: Oxygen is an element that is very familiar to us in our daily lives. Perhaps less familiar are the chemical compounds formed by reacting simple metallic elements with oxygen to form a class of materials called the solid oxides. In terms of their physical and chemical properties, these oxides are some of the most versatile, useful, and rich materials of current scientific interest. They find application in diverse areas, from simple household items such as ceramics, to high-tech applications like computer processors, hard disk drives, and environmentally friendly fuel cells. The majority of the more demanding applications (in areas such as computation and information storage) require that multiple different oxide materials are layered together to form the nanometer-scale equivalent of a laminate. Such ¡§multilayers¡¨ or ¡§heterostructures¡¨ are also very important in basic science. In this project, scientists at the University of Minnesota will acquire an instrument (the first of its kind in the US) capable of layering together these oxide materials with an unprecedented level of control over their atomic structures. Researchers from the Materials Science, Chemical Engineering, Physics, Chemistry and Electrical Engineering departments will then use these materials in a wide variety of basic and applied scientific investigations in fields such as magnetics, superconductivity, and semiconductors. The acquisition of this instrument will also provide new training and education opportunities to many students and young scientists, a vital contribution to the education of a skilled workforce in these important and highly competitive areas of technology.

技术摘要：明尼苏达大学提议收购一个多用户、高通量氧化物薄膜沉积系统，以推动氧化物异质结构领域的大型跨学科研究工作，这项工作涵盖了包括磁性在内的众多基础和应用研究领域。 、超导、相关电子、机械行为、固态化学和磁光，该仪器的用户包括四名主要研究人员，总共七名主要研究人员（来自四个部门），一名外部国家。实验室合作者，以及 15 名本科生、研究生和博士后。该仪器采用高压氧溅射，这是一种最近开发的外延多层氧化物薄膜的制造方法，在获得晶体和界面完美性后具有出色的控制能力。该系统（美国首创）将用于各种合作研究，包括（i）钙钛矿中的自旋输运和界面磁性，（ii）高 k 电介质有机半导体、高温超导体和钙钛矿磁体中的静电调谐电荷掺杂，（iii）集成磁光器件的制造，以及（iv）氧化物界面的原子分辨率电子显微镜更广泛的影响是相当大的，包括相关的潜在社会效益。随着这一重要技术领域的进步，重要基础研究成果的广泛传播，为年轻研究人员提供的跨学科教育机会的增加，这一重要技术领域熟练劳动力的教育以及重大改进非技术摘要：氧是我们在日常生活中非常熟悉的元素，也许不太熟悉的是通过简单金属元素与氧反应形成一类称为固体氧化物的材料而形成的化合物。就其物理和化学性质而言，这些氧化物是当今科学界最通用、最有用且最丰富的材料，它们应用于各个领域，从陶瓷等简单的家居用品到计算机等高科技应用。大多数要求更高的应用（例如计算和信息存储领域）需要将多种不同的氧化物材料层叠在一起以形成纳米级的层压板。 ¡ §多层¡或者 §异质结构¡在基础科学中也非常重要，在这个项目中，明尼苏达大学的科学家将获得一种仪器（美国首创），能够将这些氧化物材料分层在一起，并对其原子结构进行前所未有的控制。来自材料科学、化学工程、物理、化学和电气工程系的研究人员将在磁学、超导性和半导体等领域的各种基础和应用科学研究中使用这些材料。购买该仪器还将提供帮助。新训练为许多学生和年轻科学家提供教育机会，这对这些重要且竞争激烈的技术领域的熟练劳动力的教育做出了重要贡献。