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 He 技术摘要：这项重大研究仪器奖支持北爱荷华大学 (UNI) 购买一台闭路循环光学显微镜低温恒温器，以与 Horiba Labram HR 拉曼显微镜连接。该组合系统将能够对二维二硫属化物系统和低维拓扑绝缘体（TI）等材料进行变温光学显微镜研究。该仪器将能够研究一系列当前凝聚态物质主题，例如电荷密度波与超导性之间的相互作用、纳米结构中电荷和声子的量子限制效应的物理、低维TI表面特性的研究以及寻找 TI 纳米结构表面狄拉克锥的光学特征。该工具还将纳入本科生的研究，并将纳入 UNI 的三门本科课程。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：这项重大研究仪器奖支持购买高效制冷系统，用于多种材料的变温光学显微镜研究。该系统将与北爱荷华大学 (UNI) 物理系的商用拉曼显微镜相结合。该组合系统（拉曼显微镜和制冷系统）将能够对各种材料进行变温光学显微镜研究，并将增强和扩大 UNI 的研究范围。光学显微镜制冷系统的购置将对UNI的本科生产生巨大影响。该设备将用于三门本科课程，并将将该仪器的使用范围扩大到每年 UNI 的大约 40 名学生。它还将激励更多的学生参与研究活动，并为本科生提供使用世界一流研究仪器进行低温光学实验的实践经验。