High field superconducting magnet for muon studies of advanced materials

用于先进材料μ子研究的高场超导磁体

• 批准号: 439862-2013
• 负责人: Sonier, Jeffrey
• 金额: $ 10.93万
• 依托单位: Simon Fraser University
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments - Category 1 (<$150,000)
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=507253
• 关键词: field; superconducting; magnet; muon; studies

This proposal is a request for a high-field/high-homogeneity superconducting magnet to be used for muon spin rotation (muSR) studies of advanced materials at the Centre for Molecular and Materials Science (CMMS) at TRIUMF. The behaviour of materials under the influence of high magnetic fields provides a window into understanding the physics of complex phenomena at a subatomic or quantum level. The proposed 9 T, 10 ppm magnet will be used on the newly constructed M20 surface muon beam line, where it will support a unique research instrument. In particular, it will provide the cohort of Canadian and international users of the CMMS facility with the capability to measure muSR signals in samples subjected to high magnetic field over a time range that is twice as long as what is possible anywhere else in the world. The combination of high magnetic field and a long muSR time window will among other things, facilitate investigations of competing orders, enable determination of local spin susceptibilities, and allow for studies of high-field slow relaxation phenomena.

该提案要求在TRIUMF的分子和材料科学中心（CMMS）使用高场/高均匀性超导磁体进行先进材料的μ子自旋旋转（muSR）研究。材料在强磁场影响下的行为为理解亚原子或量子水平上复杂现象的物理学提供了一个窗口。拟议的9 T，10 ppm磁体将用于新建的M20表面μ子束线，在那里它将支持一个独特的研究仪器。特别是，它将为CMMS设施的加拿大和国际用户群提供在高磁场下测量样本中muSR信号的能力，其时间范围是世界其他任何地方的两倍。高磁场和长muSR时间窗的组合将有助于研究竞争订单，确定局部自旋极化率，并允许研究高场慢弛豫现象。