CAREER: Nanoscale Magnetic Phenomena and Coercivity Mechanism in Layered Magnets with Extremely Large Anisotropy

*非技术摘要*这个学院早期职业奖资助了一个研究和教育相结合的项目，该项目旨在探索和理解复杂材料中的纳米级磁性现象，例如层状单轴磁体。将使用最先进的低温磁成像技术。纳米尺度磁成像提供了新型磁性材料不可替代的视觉信息，对科学理解和技术应用至关重要。具有增强/紧急性能的新材料对于现代技术的进步至关重要，例如超高密度磁记录设备、磁电子学和高效电机和发电机。对未来材料科学家的培训自然与拟议的研究活动相结合。本科生和高中生将通过罗格斯大学的各种暑期项目参与拟议中的研究。这项建议的教育部分将探索罗格斯大学开发的一种新的反馈机制，以加强对非理科专业学生的有效物理教学。未来和现在的高中教师将通过罗格斯大学的教师教育计划接触到这个项目中提出的当代材料研究活动，以便现代材料科学和技术可以延伸到高中教育。*技术摘要*这个职业项目的目标是探索和理解复杂材料中的新的纳米级磁性现象，例如层状单轴磁体。低温纳米尺度的磁成像技术，包括磁力显微镜和自旋极化扫描隧道显微镜/光谱学，将被用来研究磁畴结构、磁畴不可逆性和原子尺度磁畴壁。这项研究有望对具有大的单轴各向异性的层状材料中的磁滞现象建立一个微观的理解。纳米尺度磁成像提供了新型磁性材料不可替代的真实空间信息，对纳米磁性的科学理解和技术应用具有重要意义。具有增强/紧急性能的新材料对现代技术的进步至关重要。对未来材料科学家的培训自然与拟议的研究活动相结合。本科生和高中生将通过罗格斯大学现有的各种暑期项目参与拟议的研究。这项建议的教育部分将探索罗格斯大学开发的一种新的反馈机制，以加强对非理科专业学生的有效物理教学。未来和现在的高中教师将通过罗格斯大学的教师教育计划接触到当代材料研究活动，以便现代材料科学和技术能够延伸到高中教育。

****NON-TECHNICAL ABSTRACT****This Faculty Early Career Award funds a project integrating research and education to explore and understand nanometer scale magnetic phenomena in complex materials, such as layered uniaxial magnets. State-of-the-art low temperature magnetic imaging techniques will be used. Nanoscale magnetic imaging provides irreplaceable visual information of novel magnetic materials, which is crucial for scientific understanding and technological application. New materials with enhanced/emergent properties are critical for the advances of modern technology, such as ultra-high density magnetic recording devices, magnetoelectronics and high-efficiency motors and generators. Training of future material scientists is naturally integrated with the proposed research activities. Undergraduate and high school students will be involved in the proposed research via various summer programs at Rutgers. The education component of this proposal will explore a novel feedback mechanism developed at Rutgers to enhance effective teaching of physics to non-science majors. Future and current high school teachers will be exposed to contemporary material research activities proposed in this project via the Teacher Education Program at Rutgers University so that modern material science and technology can reach out to high school education.****TECHNICAL ABSTRACT****The goal of this CAREER project is to explore and understand novel nanoscale magnetic phenomena in complex materials, such as layered uniaxial magnets. Low temperature nanoscale magnetic imaging techniques, including both magnetic force microscopy and spin polarized-scanning tunneling microscopy/spectroscopy will be used to investigate magnetic domain structure, domain irreversibility and atomic scale domain walls. The research is expected to establish a microscopic understanding of magnetic hysteresis phenomena in layered materials with a large uniaxial anisotropy. Nanoscale magnetic imaging provides irreplaceable real space information of novel magnetic materials, which is crucial for scientific understanding and technological applications of nanoscale magnetism. New materials with enhanced/emergent properties are critical for the advances of modern technology. Training of future material scientists is naturally integrated to the proposed research activities. Undergraduate and high school students will be involved in the proposed research via various existing summer programs at Rutgers. The education component of this proposal will explore a novel feedback mechanism developed at Rutgers to enhance effective teaching of physics to non-science majors. Future and current high school teachers will be exposed to contemporary material research activities via the Teacher Education Program at Rutgers University so that modern material science and technology can reach out to high school education.