GOALI: Phase Separated Ferromagnetic Metal - Metal Oxide/Hydroxide Nanomaterials as a Transformative Concept for Magnetic Field Sensors

GOALI：相分离铁磁金属 - 金属氧化物/氢氧化物纳米材料作为磁场传感器的变革概念

• 批准号: 0824215
• 负责人: Stanko Brankovic
• 金额: $ 44.98万
• 依托单位: University of Houston
• 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 2012-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0824215&HistoricalAwards=false
• 关键词: GOALI; Phase; Separated; Ferromagnetic; Metal

The objective of this research is to study the magnetoresistance of the nanocontacts made of the novel phase-separated ferromagnetic metal-metal oxide/hydroxide nanomaterials. The approach is to build, test and study prototype nanocontact devices having different and well characterized material structures. These devices will be built using bottom-up fabrication scheme with nanocontact structures varying from single crystal nickel or iron to the nanocontact having ferromagnetic matrix with certain fraction of metal-oxide/hydroxide phase. Intellectual Merit The proposed research addresses the feasibility of ferromagnetic metal-metal oxide/hydroxide nanomaterials synthesized in the nanoelectrode geometry configuration as novel approach for fabrication of magnetic field sensors. This project will establish the fundamental relationship between the size and material structure of ferromagnetic nanocontacts and their magnetoresistance. Broader Impact The proposed research program represents a multidisciplinary effort which has a large transformative potential for development of future magnetic field sensors for magnetic recording, magnetic imaging, spintronics and magnetic biosensor technologies. The new knowledge created in this project will be incorporated into undergraduate and graduate curriculum of nanotechnology and nanofabrication courses at the University of Houston and it will become a part of the broad educational outreach through the Electrochemical Society's short course instructed by PI. This work will provide the training for three doctoral students and for several high school teachers and undergraduate students involved in the summer research programs sponsored by the National Science Foundation. The students involved in this project will have a chance to get the training and to work in industrial research environment through the internships provided by the Seagate Technology.

本研究的目的是研究由新型相分离的铁磁金属-金属氧化物/氢氧化物纳米材料制成的纳米接触的磁电阻。该方法是建立，测试和研究原型纳米接触装置具有不同的和良好的表征材料结构。这些器件将使用自下而上的制造方案来构建，其中纳米接触结构从单晶镍或铁变化到具有一定比例的金属氧化物/氢氧化物相的铁磁基质的纳米接触。智力优点-拟议的研究解决了铁磁金属-金属氧化物/氢氧化物纳米材料的可行性，在纳米电极的几何配置作为新的方法，用于制造磁场传感器。该项目将建立铁磁纳米接触的尺寸和材料结构与其磁阻之间的基本关系。更广泛的影响拟议的研究计划代表了一个多学科的努力，具有很大的变革潜力，为未来的磁场传感器的磁记录，磁成像，自旋电子学和磁生物传感器技术的发展。在这个项目中创建的新知识将被纳入休斯敦大学的纳米技术和纳米纤维课程的本科生和研究生课程，它将成为通过PI指导的电化学学会短期课程的广泛教育推广的一部分。这项工作将为三名博士生和几名高中教师和本科生提供培训，这些学生参与了美国国家科学基金会赞助的夏季研究项目。参与该项目的学生将有机会通过希捷技术提供的实习获得培训并在工业研究环境中工作。