Time-differential perturbed angular correlation spectrometer

时差微扰角相关光谱仪

• 批准号: 359252-2008
• 负责人: Ryan, Dominic
• 金额: $ 6.78万
• 依托单位: McGill 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: 2007
• 资助国家: 加拿大
• 起止时间: 2007-01-01 至 2008-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=364748
• 关键词: Time; differential; perturbed; angular; correlation

The equipment requested here is to build a Time-Differential PerturbedAngular Correlation (TDPAC) spectrometer. This instrument will have atime resolution of better than 1ns (1/1,000,000,000 seconds) and willbe used to study magnetic materials at the atomic scale.By understanding how the individual atoms in a material interact toyield the large-scale magnetic properties that are exploited in bulkmaterials (permanent magnets in motors, recording media in disc drives)we aim to develop new materials with improved performance.Magnetic materials are central to many technologies, the most obviousbeing the recording industry. Research into fundamental issues in magnetismhas led to countless advances in hard magnets for motors, thin-film magnetsfor computer hard discs and very soft magnets for read/write heads indisc drives.The projects that will be undertaken with the equipment requested hereaddress fundamental issues of magnetic ordering: both the nature of theorder and the time variations of that ordering will be investigated.

本文所要求的设备是建立一个时差摄动相干（TDPAC）光谱仪。该仪器将具有优于1ns（1/ 1000,000,000秒）的时间分辨率，并将用于在原子尺度上研究磁性材料。通过了解材料中的单个原子如何相互作用以产生用于块状材料（电机中的永磁体，磁盘驱动器中的记录介质）的大规模磁性，我们的目标是开发具有改进性能的新材料。磁性材料是许多技术的核心，最明显的是唱片业。对磁学基本问题的研究导致了电机用硬磁体、计算机硬盘用薄膜磁体和磁盘驱动器读/写磁头用非常软的磁体的无数进步。该项目将使用本文所要求的设备来解决磁性排序的基本问题：将研究顺序的性质和该顺序的时间变化。