MRI: Acquisition of Major Research Instrumentation for Advanced Photoelectron Spectroscopy with Spin, Angle and Spatial Resolution

MRI：采购具有自旋、角度和空间分辨率的先进光电子能谱的主要研究仪器

• 批准号: 0923125
• 负责人: Norman Mannella
• 金额: $ 59.22万
• 依托单位: University of Tennessee Knoxville
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-10-01 至 2013-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0923125&HistoricalAwards=false
• 关键词: MRI; Acquisition; Major; Research; Instrumentation

0923125MannellaU. of Tennessee KnoxvilleTechnical Summary: Besides growth and characterizion capabilities with systematic transport and structural studies, detailed investigations of the electronic structure of advanced materials are essential in order to advance our understanding of the fundamental underpinnings of their properties. Photoemission Spectroscopy (PES) is one of the most powerful techniques for characterizing the electronic structure of materials. We propose the realization of a laboratory-based PES user facility for analysis of the chemical and electronic properties of various forms of condensed matter that are at the forefront of scientific and technological innovation. These include Correlated Oxides, Physics of Low Dimensional Systems (surfaces, interfaces, and nanophase materials), Materials for Solar Energy Conversion, Thin film superconductors, Magnetic Semiconductors and Nanostructures, Hydrogen Storage, Lunar rocks and Soils, Water Hydration of Minerals, Characterizattion of Electronics (PCBs) and Biomedical Devices for Drug Delivery. The spectrometer presents truly unique characteristics such as 1) a monochromatized x-ray source with two different energies (Al K?Ñ = 1486 eV and Ag L?Ñ?n?­ 2984 eV) with micro-spot of ?l 130 ?Ým for analysis of very small or inhomogeneous samples, and 2) a state-of-the-art hemispherical electron analyzer provisioned with a mini-Mott detector for electron spin detection. The facility will be an asset for the UT system and for a broad range of UTK departments ranging from Physics, Chemistry, Geology, Biology, and Material Engineering, and it is thus expected to nucleate interdisciplinary research covered under several NSF program areas. The proposed instrument will be based on campus, so that our students and faculty can have easy access and copious amounts of time using a state-of-the-art electron spectrometer. The proposed science and supporting infrastructure will provide an excellent setting for the education and training of internationally competitive students and postdocs from several departments. The instrument will not only complement, but also enhance the productivity of investigations carried out at facilities such as the Spallation Neutron Source (SNS), the Center for Nanophase Materials Sciences (CNMS), the Joint Institute for Advanced Materials (JIAM) which render UTK a unique place in the nation for advanced materials research. The addition of the multiple-user photoemission facility hereby proposed will grant UTK an invaluable asset for becoming a leading world-wide institution for materials characterization, research and development. Laymen Summary: Materials are the building blocks of every form of solid matter naturally existing in the universe or manufactured by humankind. The onset of new materials has always marked a major turning point in human society, with the material of choice of a given era often being its defining point. More recently, impressive advances in materials synthesis have resulted in the discovery of an ever-increasing number of complex materials exhibiting exotic properties at the forefront of promising revolutionary technological applications ranging from engineering to biotechnology. Detailed investigations of the electronic structure are essential in order to advance our understanding of the properties of advanced material. We propose the realization of a laboratory-based user facility for carrying out experiments using Photoelectron Spectroscopy, one of the most powerful techniques for measuring the electronic structure and chemical nature of materials. This instrumentation will be used to investigate the electronic properties of a wide variety of materials, including Materials for Solar Energy Conversion and Hydrogen Storage, Superconductors, Magnetic materials for data storage, Polymers, Catalysts, Biomedical Devices for Drug Delivery, Nanostructures, Lunar rocks and Soil, Biological Cells, Bacteria and Minerals. The facility will be an asset for the UT system and for a broad range of UTK departments ranging from Physics, Chemistry, Geology, Biology, and Material Engineering, and it is thus expected to nucleate interdisciplinary research. The proposed instrument will be based on campus, so that our students and faculty can have easy access and copious amounts of time using a state-of-the-art electron spectrometer. The proposed science and supporting infrastructure will provide an excellent setting for the education and training of internationally competitive students and postdocs from several departments. The instrument will not only complement, but also enhance the productivity of investigations carried out at other existing facilities which render UTK a unique place in the nation for advanced materials research. The addition of the multiple-user photoemission facility hereby proposed will grant UTK an invaluable asset for becoming a leading world-wide institution for materials characterization, research and development.

0923125曼内拉U。田纳西州诺克斯维尔技术摘要：除了系统传输和结构研究的生长和表征能力之外，对先进材料的电子结构的详细研究对于增进我们对其特性的基本基础的理解也至关重要。光电发射光谱 (PES) 是表征材料电子结构的最强大技术之一。我们建议实现一个基于实验室的 PES 用户设施，用于分析处于科技创新前沿的各种形式的凝聚态物质的化学和电子特性。其中包括相关氧化物、低维系统物理学（表面、界面和纳米相材料）、太阳能转换材料、薄膜超导体、磁性半导体和纳米结构、储氢、月球岩石和土壤、矿物水合、电子（PCB）表征和用于药物输送的生物医学设备。该光谱仪具有真正独特的特性，例如 1) 具有两种不同能量（Al KÑ = 1486 eV 和 Ag LÑÑnÝ 2984 eV）的单色 X 射线源，微光斑为 130 Ým，用于分析非常小的或不均匀的样品，2）最先进的半球形电子分析仪，配备迷你莫特探测器，用于分析非常小的或不均匀的样品。电子自旋 检测。该设施将成为 UT 系统和 UTK 物理、化学、地质、生物学和材料工程等广泛院系的资产，因此预计将成为 NSF 多个项目领域涵盖的跨学科研究的核心。拟议的仪器将设在校园内，以便我们的学生和教师可以轻松访问并有大量时间使用最先进的电子能谱仪。拟议的科学和配套基础设施将为来自多个部门的具有国际竞争力的学生和博士后的教育和培训提供良好的环境。该仪器不仅可以补充散裂中子源 (SNS)、纳米相材料科学中心 (CNMS)、先进材料联合研究所 (JIAM) 等设施进行的研究，还可以提高其研究效率，这些设施使 UTK 在美国先进材料研究领域拥有独特的地位。特此增加的多用户光电发射设施将为 UTK 提供宝贵的资产，使其成为全球领先的材料表征、研究和开发机构。外行人总结：材料是宇宙中自然存在或人类制造的各种形式固体物质的组成部分。新材料的出现始终标志着人类社会的重大转折，特定时代的材料选择往往是其决定点。最近，材料合成领域取得了令人瞩目的进展，人们发现了越来越多的复杂材料，这些材料在从工程到生物技术等有希望的革命性技术应用的前沿表现出奇异的特性。为了增进我们对先进材料特性的理解，对电子结构的详细研究至关重要。我们建议实现一个基于实验室的用户设施，用于使用光电子能谱进行实验，光电子能谱是测量材料电子结构和化学性质的最强大技术之一。该仪器将用于研究各种材料的电子特性，包括太阳能转换和储氢材料、超导体、用于数据存储的磁性材料、聚合物、催化剂、用于药物输送的生物医学设备、纳米结构、月球岩石和土壤、生物细胞、细菌和矿物质。该设施将成为 UT 系统和 UTK 物理、化学、地质、生物学和材料工程等广泛院系的资产，因此预计将成为跨学科研究的核心。拟议的仪器将设在校园内，以便我们的学生和教师可以轻松访问并有大量时间使用最先进的电子能谱仪。拟议的科学和配套基础设施将为来自多个部门的具有国际竞争力的学生和博士后的教育和培训提供良好的环境。该仪器不仅可以补充其他现有设施进行的研究，还可以提高其生产力，从而使 UTK 在美国先进材料研究领域拥有独特的地位。特此增加的多用户光电发射设施将为 UTK 提供宝贵的资产，使其成为全球领先的材料表征、研究和开发机构。