IMR: Acquisition of a Scanning Probe Microscope for Research and Education in Novel Epitaxial Materials

IMR提案将为北卡罗来纳大学教堂山分校提供支持，用于购买多功能可变温度/磁扫描探针显微镜（SPM），用于研究新型磁外延薄膜和异质结构，并用于学生培训。新仪器能够同时使用几种SPM技术进行特高压原位显微镜和光谱分析，包括隧道显微镜，力显微镜和瞬变微波显微镜，作为温度，场和样品位置的函数。这种强大的技术在其他地方是无法获得的，将用于定量和系统地测量局部电子和磁性状态、自旋极化及其空间范围。当与我们先进的合成能力相结合时，该仪器将大大加强我们在含过渡金属和IV族元素的IV族磁性薄膜和异质结构方面的研究，这是自旋极化纳米电子和光子学科学和技术的关键可行材料。这项工作目前由美国国家科学基金会和能源部资助，是一项全球性的合作努力，涉及大学、国家实验室和工业界的学生和研究人员、实验家和理论家、工程师和科学家。该仪器还将为学生提供不同层次的自旋极化纳米材料和纳米电子学的实践经验，这些领域对科学技术的进步和国家安全至关重要。IMR提案将为北卡罗来纳大学教堂山分校提供支持，用于购买多功能扫描探针显微镜（SPM），用于研究新型磁性薄膜和异质结构，并用于学生培训。SPM的工作原理是在材料表面附近移动一个小针状的“尖端”；尖端以各种方式与表面相互作用。新仪器能够同时使用几种SPM技术进行原位原子尺度显微镜和光谱分析，包括隧道显微镜，力显微镜和瞬变微波显微镜，作为温度，磁场，样品位置和超高真空条件下的函数。这种强大的技术，在其他地方是无法获得的，将用于在纳米尺度上定量和系统地测量电子和磁性。当与我们先进的材料合成能力相结合时，该仪器将显著加强我们对可行的硅兼容自旋极化材料和器件的研究，用于自旋极化纳米电子和光子学的科学和技术，其中电子和磁态同时被控制和处理。这项工作目前由美国国家科学基金会和能源部资助，是一项全球性的合作努力，涉及大学、国家实验室和工业界的学生和研究人员、实验家和理论家、工程师和科学家。该仪器还将为学生提供不同层次的自旋极化纳米材料和纳米电子学的实践经验，这些领域对科学技术的进步和国家安全至关重要。

The IMR proposal will provide support to the University of North Carolina at Chapel Hill for the acquisition of a multi-functional variable temperature/magnet scanning probe microscope (SPM) for studying novel magnetic epitaxial films and heterostructures and for student training. The new instrument is capable of UHV in-situ microscopy and spectroscopy using several SPM techniques simultaneously, including tunneling microscopy, force microscopy, and evanescent microwave microscopy, as functions of temperature, field, and sample position. The powerful techniques, not available elsewhere, will be used for quantitative and systematic measurements of local electronic and magnetic states, spin-polarization, and their spatial extents. When integrated with our advanced synthesis capabilities, the instrument will significantly enhance our research in group IV-based magnetic films and heterostructures containing transition metal and group IV elements, viable materials key to the science and technology of spin-polarized nano-electronics and photonics. The work, currently funded by the National Science Foundation and the Department of Energy, is a worldwide collaborative effort involving students and researchers, experimentalists and theorists, and engineers and scientists at universities, national labs, and industry. The instrument will also provide hands-on experiences for students at various levels in spin-polarized nano-materials and nano-electronics, areas that are critical for the advancement of science and technology and for national security.The IMR proposal will provide support to the University of North Carolina at Chapel Hill for the acquisition of a multi-functional scanning probe microscope (SPM) for studying novel magnetic thin films and heterostructures and for student training. An SPM operates by moving a small needle-like "tip" near the surface of a material; the tip interacts with the surface in various ways . The new instrument is capable of in-situ atomic-scale microscopy and spectroscopy using several SPM techniques simultaneously, including tunneling microscopy, force microscopy, and evanescent microwave microscopy, as functions of temperature, magnetic field, sample position, and under ultrahigh vacuum conditions. The powerful techniques, not available elsewhere, will be used for quantitative and systematic measurements of electronic and magnetic properties on nanometer scale. When integrated with our advanced materials synthesis capabilities, the instrument will significantly enhance our research in viable silicon-compatible spin-polarized materials and devices for the science and technology of spin-polarized nano-electronics and photonics, where both electronic and magnetic states are controlled and processed at the same time. The work, currently funded by the National Science Foundation and the Department of Energy, is a worldwide collaborative effort involving students and researchers, experimentalists and theorists, and engineers and scientists at universities, national labs, and industry. The instrument will also provide hands-on experiences for students at various levels in spin-polarized nano-materials and nano-electronics, areas that are critical for the advancement of science and technology and for national security.