Acquisition of a Vector High Field Magnet System for Magnetic Nanostructure Research and Student Training

获取用于磁性纳米结构研究和学生培训的矢量高场磁体系统

• 批准号: 0114142
• 负责人: Andrew Kent
• 金额: $ 9.67万
• 依托单位: New York University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-08-01 至 2003-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0114142&HistoricalAwards=false
• 关键词: Acquisition; Vector; Field; Magnet; System

With this award from the Instrumentation for Materials Research Program, the Department of Physics at New York University will acquire an automated vector high field superconducting magnet system. This system will be used to study magnetic nanostructures and, in particular, quantum tunneling of the magnetic moment (QTM). Understanding such characteristics of magnetic nanostructures is a major scientific challenge with important implications for the miniaturization of magnetic storage technology. This system will be used with high sensitivity Hall-effect magnetometers, that have sensitivities many orders of magnitude better than commercially available magnetometers. This sensitivity, coupled with a wide operating temperature, 0.3 K to 300 K, and the new ability to vary the field magnitude and orientation rapidly, will permit unique and advanced characterization of the magnetic properties of materials. In particular, it will greatly enhance interdisciplinary projects focused on understanding QTM in chemically synthesized nanometer-sized magnets. The equipment will also enhance the research and educational opportunities at NYU and the research capabilities available to a multi-university interdisciplinary scientific collaboration. Graduate students will use this instrument in their research. Undergraduates will also participate in the synthesis of magnetic nanostructures and their characterization at this advanced experimental facility. %%%With this award from the Instrumentation for Materials Research Program, the Department of Physics at New York University will acquire an automated vector high field superconducting magnet system. This system will be used to study magnetic nanostructures. The miniaturization of magnetic devices to this size is critical to advances in magnetic information storage, which is an important industry in the United States. For instance, nanoscale magnets exhibit quantum tunneling of the magnetic moment (QTM), that may seriously limit their usefulness in conventional magnetic information storage, but at the same time, could provide a medium for a much faster type of information processing known as quantum computing. This system will be used to conduct high sensitivity magnetic measurements over a wide range of magnetic fields and temperatures, not possible with commercially available instruments. In particular, it will greatly enhance interdisciplinary projects focused on understanding QTM in chemically synthesized nanometer-sized magnets. The equipment will also enhance the research and educational opportunities at NYU and the research capabilities available to a multi-university interdisciplinary scientific collaboration.

纽约大学物理系将获得一套自动化的矢量高场超导磁体系统。该系统将用于研究磁性纳米结构，特别是磁矩的量子隧穿（QTM）。了解磁性纳米结构的这些特性是一项重大的科学挑战，对磁存储技术的小型化具有重要意义。该系统将与高灵敏度霍尔效应磁力计一起使用，霍尔效应磁力计的灵敏度比市售磁力计高许多数量级。这种灵敏度，加上0.3 K到300 K的宽工作温度，以及快速改变磁场大小和方向的新能力，将允许独特和先进的材料磁性表征。特别是，它将极大地加强跨学科的项目，重点是了解化学合成纳米尺寸磁体的QTM。该设备还将提高纽约大学的研究和教育机会，以及多所大学跨学科科学合作的研究能力。研究生将在他们的研究中使用这个仪器。本科生也将参与磁性纳米结构的合成及其表征在这个先进的实验设施。纽约大学物理系将获得一套自动化的矢量高场超导磁体系统。该系统将用于研究磁性纳米结构。磁性设备小型化到这种尺寸对磁性信息存储的进步至关重要，这是美国的一个重要产业。例如，纳米级磁体表现出磁矩的量子隧穿（QTM），这可能会严重限制它们在传统磁性信息存储中的用途，但与此同时，可以为一种更快的信息处理类型（称为量子计算）提供一种介质。该系统将用于在广泛的磁场和温度范围内进行高灵敏度的磁测量，这是商用仪器无法实现的。特别是，它将极大地加强跨学科的项目，重点是了解化学合成纳米尺寸磁体的QTM。该设备还将提高纽约大学的研究和教育机会，以及多所大学跨学科科学合作的研究能力。