High field superconducting magnet for muon studies of advanced materials

这项提议是要求在TRIUMF分子和材料科学中心(CMMS)使用一种高场/高均质超导磁体用于先进材料的Muon自旋旋转(MuSR)研究。材料在强磁场影响下的行为为在亚原子或量子水平上理解复杂现象的物理学提供了一个窗口。拟议中的9T，10ppm磁体将用于新建的M20表面Muon束线，在那里它将支持一种独特的研究仪器。特别是，它将为CMMS设施的加拿大和国际用户群提供在强磁场作用下的样品中测量muSR信号的能力，时间范围是世界其他任何地方可能的两倍。强磁场和较长的musr时间窗口的结合将促进竞争有序的研究，使局域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.