CAREER: Magnetic Thin Films and Devices

Romel GomezECS-9984797提出了一项关于磁性薄膜结构和新型器件特性的全面研究和教育倡议。研究的目标是了解控制降维薄膜的磁特性和电学特性的机制，并利用新的现象来设计超高密度数据存储、自旋相关电子学、MEMS和量子计算领域的器件。这些研究工作的具体目标是：a)建立薄膜多层膜的表面形态、微磁性和输运性质之间的关系；b)了解纳米结构铁磁岛的反转机制；c)开发具有电压可控交换作用的新型自旋相关磁性隧道结和使用半金属锰氧化物电极的多层自旋阀。这些努力将利用表面科学、分子束外延、扫描探针显微镜、磁成像和器件制造方面的现有技术和实验能力。我们的项目与我们与世界各地的几个学术机构、美国的国家实验室以及马里兰大学的材料研究科学和工程中心建立了合作关系。该项目还将提供培训磁性技术领域高技能专业人员的教育机会；以及在本科和大学预科教育中提供磁性教学工具。一个具体的项目涉及制作动画视频，从实验中衍生出来，在微观层面上“展示”磁性的动态。这些信息将通过互联网以电子方式传播给广大受众，从而加强对磁性的了解和对科学技术的热情。

Romel GomezECS-9984797 A comprehensive research and educational initiative on the properties of magnetic thin film structures and novel devices is proposed. The research goals are to understand the mechanisms that govern the magnetic and electrical characteristics of thin films with reduced dimensionality, and to exploit novel phenomena to design devices in the areas of ultra high density data storage, spin-dependent electronics, MEMS, and quantum computation. The research activities are specifically directed towards:a) establishing the correlation between surface morphology, micromagnetics and transport properties of thin-film multilayers,b) understanding the reversal mechanisms of nanostructured ferromagnetic islands, c) developing novel spin-dependent magnetic tunnel junctions with voltage controllable exchange interactions and multi-layer spin-valves using half-metallic manganite oxide electrodes.These efforts will utilize the existing technical expertise and experimental capabilities in surface science, molecular beam epitaxy, scanned probe microscopy, magnetic imaging, and device fabrication. Our projects are leveraged with our established collaborations with several academic institutions worldwide, national laboratories in the United States as well as the Materials Research Science and Engineering Center at the University of Maryland. This project will also provide educational opportunities to train highly skilled professionals in the area of magnetic technology; as well as to provide pedagogical tools for magnetism in the undergraduate and pre-college educational levels. A specific project involves the production of animation videos, derived from experiments, that "show" the dynamics of magnetism at the microscopic level. These will be disseminated electronically via the internet to reach a broad audience; thereby enhancing the understanding of magnetism and enthusiasm with science and technology.