权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

MRI: Acquisition of a VersaLab Physical Property Measurement System at University of the District of Columbia

MRI：在哥伦比亚特区大学购买 VersaLab 物理特性测量系统

基本信息

批准号：
1920097
负责人：
Pawan Tyagi
金额：
$ 19.92万
依托单位：
University of the District of Columbia
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2019
资助国家：
美国
起止时间：
2019-09-01 至 2021-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1920097&HistoricalAwards=false
关键词：
MRI Acquisition VersaLab Physical Property

项目摘要

Advances in nanotechnology require the ability to characterize devices such as magnetic devices for advanced computing and energy harvesting devices such as solar cells. A versatile physical property measurement system provides this needed capability. The instrument is an assembly of modules that can measure magnetic and thermal properties. Its scope can be expanded by adding electrical and optical property measurement capabilities, increasing its versatility. Hence, it is a potent resource to perform cutting-edge research on a wide range of nanoscale materials and devices. This instrument will be placed at the University of the District of Columbia (UDC), a historically black college and university (HBCU). The instrument is an economical and highly functional material characterization resource for UDC to fulfill its mission of providing 21st-century training to a diverse range of students enrolled in bachelors through doctoral programs. The requested instrumentation will help the highly energetic and enthusiastic faculty to establish a center of excellence in nanotechnology. Students will collaborate with national laboratories such as the National Institute of Standards and Technology as well as regional partner institutions. This instrumentation will help UDC to attract and retain a diverse student population by engaging them in highly rewarding research projects. It will also foster inquiry-based student learning in graduate and undergraduate courses in nanotechnology. UDC will also provide experiential learning experiences to the high school teachers and students in the area.The VersaLab Physical Property Measurement System (VPPMS) will enable cutting edge multidisciplinary research by providing access to three highly useful modules: (i) vibrating sample magnetometer (VSM), (ii) heat capacity measurement, and (iii) ferromagnetic resonance (FMR). These three modules will be utilized for investigating the magnetic and thermal properties over a 50-400K temperature range. The UDC team will investigate molecular spintronics devices and magnetic metamaterials by utilizing the VSM and FMR modules. VSM and FMR modules will be crucial to understanding the role of magnetic molecule induced exchange coupling between two ferromagnetic electrodes. They will also utilize the VPPMS to investigate the anisotropy and damping factor of the ferromagnetic electrodes in order to understand the mechanism of magnetic molecule based spintronics devices and magnetic metamaterials. Additionally, the VPPMS will be used to detect the process induced magnetic phases in the pyrite based solar cell materials and will correlate the magnetic profile of pyrites with the resulting solar cell properties. The VPPMS can also map the thermally activated property changes over the temperature range of 50K to 400K to investigate the science of creating highly efficient solar cells. In other work, the heat capacity module of the VPPMS will enhance understanding of the relation between the nanoemulsion phases and their heat capacity to yield nanoscale materials as a heat exchanger for advanced cooling. Collaborators from Catholic University of America will use this VPPMS to create new knowledge about the temperature dependent dynamic magnetization responses from the novel Heusler alloys. The VPPMS will be used to enhance the understanding of the impact of magnetic properties of nickel film based multilayer thermoelectric devices on the figure of merit. Overall, the research enabled by this instrumentation project has the potential to provide transformative knowledge in the areas of futuristic nanoscale computer devices, novel magnetic metamaterials, and materials for energy harvesting and energy conversion.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.

纳米技术的进步需要能够表征先进计算的磁性设备和太阳能电池等能量收集设备。多功能的物理性能测量系统提供了这种所需的能力。该仪器是一组模块，可以测量磁性和热物性。它的范围可以通过增加电气和光学特性测量功能来扩展，增加了它的通用性。因此，它是在广泛的纳米材料和器件上进行尖端研究的有力资源。该仪器将放置在哥伦比亚特区大学(UDC)，这是一所历史上的黑人学院和大学(HBCU)。该仪器是UDC实现其使命的经济和高功能的材料表征资源，该使命是为通过博士项目注册的各种学士学位的学生提供21世纪的培训。所要求的仪器将帮助高度精力充沛和热情的教职员工建立一个纳米技术的卓越中心。学生将与国家标准与技术研究所等国家实验室以及区域合作机构合作。这一工具将帮助UDC通过让他们参与高回报的研究项目来吸引和留住不同的学生群体。它还将在纳米技术的研究生和本科生课程中促进以探究为基础的学习。UDC还将为该地区的高中教师和学生提供体验式学习体验。VersaLab物理特性测量系统(VPPMS)将通过提供三个非常有用的模块来支持尖端的多学科研究：(I)振动样品磁强计(VSM)，(Ii)热容测量，和(Iii)铁磁共振(FMR)。这三个模块将用于研究50-400K温度范围内的磁性和热学性质。UDC团队将利用VSM和FMR模块研究分子自旋电子学设备和磁性超材料。VSM和FMR模块对于理解两个铁磁电极之间磁性分子诱导的交换耦合的作用是至关重要的。他们还将利用VPPMS研究铁磁电极的各向异性和衰减因子，以了解基于磁性分子的自旋电子器件和磁性超材料的机理。此外，VPPMS将用于检测黄铁矿为基础的太阳能电池材料中的工艺感应磁相，并将黄铁矿的磁性轮廓与所产生的太阳能电池性能相关联。VPPMS还可以绘制50K至400K温度范围内的热激活特性变化图，以研究制造高效太阳能电池的科学。在其他工作中，VPPMS的热容模块将加强对纳米乳液相与其热容之间关系的理解，以产生纳米级材料作为先进冷却的热交换器。来自美国天主教大学的合作者将使用这种VPPMS来创造关于新型Heusler合金随温度变化的动态磁化响应的新知识。VPPMS将用于增强对镍膜基多层热电器件的磁性对品质因数的影响的理解。总体而言，由该仪器项目促成的研究有可能提供未来纳米级计算机设备、新型磁性超材料以及用于能量收集和能量转换的材料领域的变革性知识。该奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。