MRI: Acquisition of a Closed Cycle Cryostat for Low Temperature Optical Microscopy Studies of Dichalcogenides and Topological Insulators at a Predominantly Undergraduate Inst

MRI：在以本科为主的研究所购买闭循环低温恒温器，用于二硫化物和拓扑绝缘体的低温光学显微镜研究

• 批准号: 1337207
• 负责人: Rui He
• 金额: $ 10.54万
• 依托单位: University of Northern Iowa
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-09-01 至 2015-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1337207&HistoricalAwards=false
• 关键词: MRI; Acquisition; Closed; Cycle; Cryostat

1337207 HeTechnical abstract:This Major Research Instrumentation award supports the University of Northern Iowa (UNI)with the acquisition of a closed cycle optical microscopy cryostat to be interfaced with a Horiba Labram HR Raman Microscope. The combined system will enable variable temperature optical microscopy studies of materials such as 2-dimensional dichalcogenide systems and low dimensional topological insulators (TIs). The instrument will enable studies of a range of current condensed matter topics such as the interplay between charge-density-waves and superconductivity, the physics of quantum confinement effects of charges and phonons in nanostructures, studies of surface properties of low dimensional TIs, and the search for optical signature of Dirac cones on the surface of TI nanostructures. The instrument will also be integrated in undergraduate students research and it will be incorporated in three undergraduate courses at UNI. The state-of-the-art optical microscopy cryostat will significantly broaden the scope of research and teaching at UNI. Non-technical Abstract:This Major Research Instrumentation award supports the acquisition of an efficient refrigeration system for variable temperature optical microscopy studies of diverse materials. The system will be combined with a commercial Raman microscope at the Physics Department of the University of Northern Iowa (UNI). The combined system (Raman microscope and refrigeration system) will enable variable temperature optical microscopy studies of a variety of materials and will enhance and broaden the scope of the research at UNI. The acquisition of an optical microscopy refrigeration system will have a powerful impact on the undergraduate students at UNI. This equipment will be used in three undergraduate courses and will extend the reach of the instrument to approximately forty more students per year at UNI. It will also stimulate participation of greater numbers of students in research activities and provide undergraduate students with hands-on experience in low temperature optical experiments using world-class research instrumentation.

1337207 Hetechnical摘要：这项主要的研究仪器奖支持北爱荷华大学（UNI），以获取封闭的循环光学显微镜低温恒温器与Horiba Labram HR Raman显微镜相连。联合系统将启用对材料（例如二维二进制元素系统和低维拓扑绝缘子（TIS））的材料的可变温度光学显微镜研究。该仪器将启用对当前凝结物质主题的研究，例如电荷密度波和超导性之间的相互作用，电荷和声子在纳米结构中的量子约束效应的物理学，低维度TI的表面特性的研究以及寻找Ti Nanostrusters表面上的Dirac锥的光学标志的搜索。该乐器还将集成到本科生的研究中，并将在UNI的三个本科课程中纳入其中。最先进的光学显微镜低温恒温器将显着扩大UNI的研究和教学范围。 非技术摘要：这一主要的研究仪器奖支持了有效的制冷系统，用于多种材料的温度光学显微镜研究。该系统将与爱荷华大学北部物理系（UNI）物理系相结合。组合系统（拉曼显微镜和制冷系统）将对多种材料进行可变的温度光学显微镜研究，并将增强和扩大UNI研究的范围。获得光学显微镜制冷系统的获取将对UNI的本科生产生强大的影响。该设备将用于三个本科课程，并将乐器的覆盖范围扩大到每年在UNI的大约40名学生。它还将刺激更多学生参与研究活动，并为本科生提供使用世界级研究仪器在低温光学实验中的动手经验。