MRI Consortium: Development of magneto-ellipsometer for the MET beamline of the National Synchrotron Light Source (NSLS-II), Brookhaven National Laboratory

MRI 联盟：开发用于布鲁克海文国家实验室国家同步加速器光源 (NSLS-II) MET 光束线的磁椭偏仪

• 批准号: 1828061
• 负责人: Andrei Sirenko
• 金额: $ 80万
• 依托单位: New Jersey Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-10-01 至 2023-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1828061&HistoricalAwards=false
• 关键词: MRI; Consortium; Development; magneto; ellipsometer

A consortium between New Jersey Institute of Technology (NJIT), Columbia U., and the National Synchrotron Light Source (NSLS-II) will develop a new scientific instrument for advanced optical experiments at Brookhaven National Laboratory. Synchrotron radiation at the MET beamline of NSLS-II will be used as a light source to illuminate samples. Polarization of the light that is reflected from or transmitted through the samples will be analyzed to determine the sample properties and their changes under extreme conditions imposed by the external magnetic field, low temperatures, and high hydrostatic pressure. The new instrument will qualitatively improve understanding of material behavior under extreme conditions and will facilitate invention of materials with desired properties for nanoelectronics and spintronics. This instrument will become available to research groups from multiple universities thus promoting the progress in the field of materials spectroscopy. Distinguishing features of this Project include the integration of fundamental research with the education of undergraduate and graduate students and training of the new generation of the scientific instrument developers. A consortium between New Jersey Institute of Technology (NJIT), Columbia U., and the National Synchrotron Light Source (NSLS-II) will develop a multi-User facility for low-temperature ellipsometry and transmission/reflection polarimetry in high magnetic fields. The setup will be installed at the new synchrotron radiation source: the Magnetospectroscopy, Ellipsometry and Time-Resolved Optical Spectroscopies (MET) beamline of NSLS-II, Brookhaven National Laboratory (BNL). Full Mueller matrix spectroscopic ellipsometry and polarimetry will be available in the spectral range between 10 cm-1 and 10,000 cm-1. The setup will have magnetic fields of up to 7 T with a capability to switch between the exact Faraday and Voigt configurations of the direction of the magnetic field with respect to the sample. The pump-probe capability at MET will be integrated in the setup to study changes of materials' properties induced by photo-induced carriers. Optics for reflectivity measurements under high hydrostatic pressure in the magnetic field will be also included. The proposed instrument will facilitate research activities aimed at better understanding low-temperature and magnetic effects in quantum materials, such as single crystals and thin films of multiferroics, superconductors, and topological insulators as well as in the related area of the non-trivial light propagation in magneto-electric media. Distinguishing features of this Project include the integration of fundamental research with the education of undergraduate and graduate students, training of the new generation of the scientific instrument developers, and their close collaboration with NSLS-II. The instrument will be offered to the external Users through the proposal-based General User access system at NSLS-II.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

新泽西理工学院（NJIT），哥伦比亚大学（NJIT）和国家同步器光源（NSLS-II）之间的财团将开发出一种新的科学工具，用于在布鲁克哈文国家实验室进行高级光学实验。 NSLS-II的MET梁线上的同步加速器辐射将用作照明样品的光源。将分析从样品中反射或传播的光的极化，以确定样品特性及其在外部磁场，低温和高静水压力下施加的极端条件下的变化。新仪器将在极端条件下定性地提高人们对材料行为的理解，并促进具有纳米电子和旋转型具有所需特性的材料的发明。该仪器将用于多个大学的研究小组，从而促进材料光谱领域的进步。该项目的区别特征包括将基本研究与本科生和研究生的教育以及新一代科学仪器开发人员的培训进行整合。新泽西理工学院（NJIT），哥伦比亚大学和国家同步器光源（NSLS-II）之间的联盟将开发出多用户的设施，用于高磁场中的低温椭圆测量和变速箱/反射极化。该设置将安装在新的同步加速器辐射来源：磁光谱，椭圆法和时间分辨的光谱光谱（MET）NSLS-II的光束线，Brookhaven国家实验室（BNL）。完整的Mueller基质光谱椭圆法和极化法将在10 cm-1至10,000 cm-1之间可用。该设置的磁场最多为7 t，并且能够在相对于样品的磁场方向的确切法拉第和VOIGT配置之间切换。 MET的泵探针能力将集成在设置中，以研究由照片诱导的载体引起的材料特性的变化。还将包括用于在磁场中高静水压力下进行反射率测量的光学。所提出的仪器将促进旨在更好地理解量子材料中的低温和磁效应，例如单晶，超导体和拓扑绝缘子的单晶和薄膜，以及磁磁媒体中非平凡光传播的相关区域。该项目的区别特征包括将基本研究与本科生和研究生的教育相结合，对新一代科学仪器开发人员的培训以及与NSLS-II的密切合作。该仪器将通过NSLS-II的基于提案的通用用户访问系统向外部用户提供。该奖项反映了NSF的法定任务，并且使用基金会的知识分子优点和更广泛的影响审查标准，被认为值得通过评估。