High field superconducting magnet for muon studies of advanced materials

该提案是对高场/高均匀性超导磁体的请求，用于TRIUMF分子和材料科学中心（CMMS）的先进材料的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磁铁将用于新建的M20表面介子束流线，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提供在高磁场下测量样品中muSR信号的能力，其时间范围是世界上任何其他地方的两倍。高磁场和长muSR时间窗的结合将促进竞争序的研究，使局部自旋磁化率的确定成为可能，并允许研究高场慢弛豫现象。

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.