Development of Spin Polarized Electron Scattering Facilities

自旋极化电子散射装置的研制

• 批准号: 9977812
• 负责人: Brian Robertson
• 金额: $ 37.59万
• 依托单位: University of Nebraska-Lincoln
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-08-15 至 2001-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9977812&HistoricalAwards=false
• 关键词: Development; Spin; Polarized; Electron; Scattering

RobertsonEPS-9977812In an effort to become a center of excellence in this technology, the University of Nebraska-Lincoln (UNL) intends to further develop its current strength in spin polarized electron sources and detectors through a program of developing new instrumentation for the characterization of magnetic materials and oxides. Using its strong collaborations with scientists and engineers already interested in developing and using this instrumentation for electron spectroscopies, the three program goals include: 1) building new electron sources that produce polarized electrons; 2) building efficient new electron detectors that detect incident electrons and determine spin polarization; and, 3) building robust, easy to use, compact electron energy analyzers. Research groups at UNL and within the rest of the U.S. stand to benefit from the advances made in this project which will for the first time, enable comprehensive correlation of surface and internal magnetic, compositional and structural information. Development of this instrumentation for spin polarized electron scattering has strong support from non-federal sources, including industry, Japan and the Nebraska Research Initiative. In order to attract further support from industry as well as stimulate economic activity in Nebraska, it is necessary to work through the EPSCoR-infrastructure program to develop practical prototype instruments such as this activity will allow.

为了成为这项技术的卓越中心，内布拉斯加大学林肯分校（UNL）打算通过开发用于磁性材料和氧化物表征的新仪器的计划，进一步发展其在自旋极化电子源和探测器方面的现有实力。利用其与已经对开发和使用这种电子光谱仪器感兴趣的科学家和工程师的紧密合作，该计划的三个目标包括：1)建立产生极化电子的新电子源；2)建立高效的新型电子探测器，探测入射电子并确定自旋极化；3)构建坚固、易于使用、紧凑的电子能量分析仪。UNL和美国其他地区的研究小组将从该项目中取得的进展中受益，该项目将首次实现表面和内部磁性、成分和结构信息的全面关联。这种自旋极化电子散射仪器的开发得到了非联邦来源的大力支持，包括工业界、日本和内布拉斯加州研究计划。为了进一步吸引工业界的支持，并刺激内布拉斯加州的经济活动，有必要通过EPSCoR-infrastructure项目来开发实用的原型仪器，如该活动所允许的。