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

职业：具有极大各向异性的层状磁体中的纳米级磁现象和矫顽力机制

• 批准号: 0844807
• 负责人: Weida Wu
• 金额: $ 52.5万
• 依托单位: Rutgers University New Brunswick
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-03-01 至 2015-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0844807&HistoricalAwards=false
• 关键词: CAREER; Nanoscale; Magnetic; Phenomena; Coercivity

****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.

****非技术摘要****该教师早期职业奖资助一个集研究和教育于一体的项目，旨在探索和理解复杂材料（例如层状单轴磁体）中的纳米级磁性现象。 将使用最先进的低温磁成像技术。纳米级磁成像为新型磁性材料提供了不可替代的视觉信息，这对于科学理解和技术应用至关重要。具有增强/新兴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、磁电子学以及高效电机和发电机。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的研究。该提案的教育部分将探索罗格斯大学开发的一种新颖的反馈机制，以提高非科学专业的物理教学效果。未来和现任高中教师将通过罗格斯大学的教师教育计划接触到该项目提出的当代材料研究活动，以便现代材料科学和技术能够延伸到高中教育。****技术摘要****该职业项目的目标是探索和理解复杂材料（例如层状单轴磁体）中的新颖纳米级磁性现象。 低温纳米级磁成像技术，包括磁力显微镜和自旋偏振扫描隧道显微镜/光谱学，将用于研究磁畴结构、磁畴不可逆性和原子尺度磁畴壁。 该研究有望建立对具有大单轴各向异性的层状材料中磁滞现象的微观理解。 纳米磁成像提供了新型磁性材料不可替代的真实空间信息，对于纳米磁性的科学认识和技术应用至关重要。具有增强/新兴特性的新材料对于现代技术的进步至关重要。对未来材料科学家的培训自然会融入到拟议的研究活动中。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。该提案的教育部分将探索罗格斯大学开发的一种新颖的反馈机制，以提高非科学专业的物理教学效果。未来和现任的高中教师将通过罗格斯大学的教师教育计划接触当代材料研究活动，以便现代材料科学和技术能够深入到高中教育。