Single-crystal alignment facility for quantum materials research

用于量子材料研究的单晶对准设备

• 批准号: 423563-2012
• 负责人: Kim, YoungJune
• 金额: $ 4.51万
• 依托单位: University of Toronto
• 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: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=495961
• 关键词: Single; crystal; alignment; facility; quantum

This proposal seeks to fund a single-crystal alignment facility for quantum materials research. A new x-ray CCD detector integrated with a high-precision goniometer and a matching wire saw will enable students and researchers to align single crystal samples with the precision required for advanced measurements in quantum materials research. One of the key characteristics of many materials of interest in condensed matter physics is the anisotropy of their physical properties, which reflects the complex electronic structure of these materials. Due to this anisotropy, electrical conductivity and magnetic susceptibility can depend very sensitively on the direction of electric and magnetic field, respectively, and precise alignment of the sample along the desired crystallographic axis is very important for such measurements. The proposed equipments will be also used to study non-equilibrium structural dynamics in charge and orbital ordered transition metal oxides and to align many small crystals together for inelastic neutron scattering experiments. In addition, the crystal alignment facility will be incorporated into the training program of graduate and senior undergraduate students at University of Toronto.

该提案旨在为量子材料研究的单晶对准设施提供资金。一种新的X射线CCD探测器集成了高精度测角仪和匹配的线锯，将使学生和研究人员能够以量子材料研究中先进测量所需的精度对准单晶样品。凝聚态物理学中许多感兴趣的材料的关键特征之一是它们的物理性质的各向异性，这反映了这些材料的复杂电子结构。由于这种各向异性，电导率和磁化率可以分别非常敏感地取决于电场和磁场的方向，并且样品沿着所需晶轴的精确对准对于这种测量非常重要。建议的设备也将用于研究电荷和轨道有序过渡金属氧化物的非平衡结构动力学，并将许多小晶体排列在一起进行非弹性中子散射实验。此外，晶体配向设施将纳入多伦多大学研究生和高年级本科生的培训计划中。