RUI: Structural, Morphological and Magnetic Characterization of Exchange Coupled Structures

RUI：交换耦合结构的结构、形态和磁性表征

• 批准号: 9970789
• 负责人: Zbigniew Celinski
• 金额: $ 27.68万
• 依托单位: University of Colorado at Colorado Springs
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-06-01 至 2003-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9970789&HistoricalAwards=false
• 关键词: RUI; Structural; Morphological; Magnetic; Characterization

9970789CelinskiThis is a combined experiment and theory project which an area of major interest in magnetic multilayers. Layered magnetic materials are of great current interest in part because of their applications in magnetic storage devices, and in part because of fundamental questions about the relation between the structure of the thin layers and their magnetic properties. The project focuses on the influence of interface morphology on the magnetic properties of the composite structure. This is a complex problem because there are many different types of interfaces and the structural interface properties may be quite different from the magnetic interface properties. The research will investigate the magnetic and structural properties of Fe/Pd/Fe and Fe/Ag/Fe multilayers. These can be grown with a variety of well-characterized interfaces, and depending on growth conditions can exhibit terrace widths varying from a few nanometers to a micron. A key measurement tool is the use of ferromagnetic resonance to determine magnetic interface quality through measurements of the linewidth. An important application of the results will be to correlate magnetic and structural interface quality with the size of the giant magnetoresistance in the layered materials. This research will be carried out at a primarily undergraduate institution. Students participating in the project receive excellent training with state of the art instrumentation, which prepares them for careers in industry or for continued research at the graduate school level.%%%The research project will be conducted at a primarily undergraduate institution and involves the synergist collaboration between an experimentalist and a theorist. The principle investigators will study magnetic metal multilayers which the giant magneto resistance effect (GMR) now commercially employed in computer hard drives. The objective is to learn how the structural morphology of the metal multilayers influences their magnetic properties. Students participating in the project receive excellent training with state of the art instrumentation, which prepares them for careers in industry or for continued research at the graduate school level.***

9970789Celinskithis是一个合并的实验和理论项目，对磁性多层的重大兴趣。分层的磁性材料具有极大的当前感兴趣，部分原因是它们在磁性存储设备中的应用，部分原因是关于薄层结构与其磁性性能之间关系的基本问题。该项目着重于界面形态对复合结构磁性的影响。这是一个复杂的问题，因为有许多不同类型的接口，结构界面属性可能与磁接口属性大不相同。该研究将研究Fe/pd/fe/fe/ag/fe多层的磁性和结构特性。这些可以使用各种特征良好的界面生长，并且根据生长条件的不同，可以表现出从几纳米到微米的露台宽度。一个关键的测量工具是使用铁磁共振来通过线宽测量来确定磁接口质量。结果的重要应用是将磁性和结构界面质量与分层材料中的巨磁倍率大小相关联。这项研究将在主要的本科机构进行。参加该项目的学生接受了最先进的仪器的良好培训，这为他们的行业职业做好准备，或者在研究生院层面继续研究。%%％研究项目将在主要的本科机构进行，并涉及协同效应实验主义者与理论家之间的合作。原则研究人员将研究磁性金属多层，该磁性金属多层现在在计算机硬盘驱动器中商业使用了巨型磁电阻效应（GMR）。目的是了解金属多层的结构形态如何影响其磁性。参加该项目的学生接受了最先进的仪器的出色培训，这为他们的行业职业或研究生院阶段的持续研究做好准备。***