Cryogen Support for PVAMU extreme Conditions lab

PVAMU 极端条件实验室的低温支持

• 批准号: 1053362
• 负责人: Kevin Storr
• 金额: $ 2.5万
• 依托单位: Prairie View A & M University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-15 至 2012-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1053362&HistoricalAwards=false
• 关键词: Cryogen; Support; PVAMU; extreme; Conditions

This award from the Division of Materials Research provides support Prairie View A&M University (PVAMU) for acquisition of supplies to operate a 10 milliKelvin Dilution Refrigerator System with integrated Tunnel Diode Oscillator (TDO) capabilities. TDO measurements are a contactless means of measuring sample resistivity. The Refrigerator and TDO will provide the resolution needed for extensive probing of the electronic and magnetic properties of inorganic and organic materials and heavy fermion systems. It will further permit extensive of the electronic properties. In addition, the dilution refrigerator extends the capabilities of standard techniques such as DC electrical transport, magnetization, specific heat and pressure by allowing them to be conducted in an extreme temperature environment. The dilution refrigerator system coupled with the tunnel diode oscillator allows the scientists to extend the phase boundaries of previously studied materials and firmly establish the phase boundaries of new systems. This system is ideal for heavy fermion systems being currently grown by our collaborators from North Carolina A&T University, Los Alamos National Lab and Greece. It will also help the professors at PVAMU to continue existing Junior Physicist Experience Program which allows high school juniors and seniors to gain valuable laboratory skills at a minority serving institution. This program will help increase the number of underrepresented scientists.

材料研究部的这一奖项为Prairie View AM University（PVAMU）提供了支持，用于采购具有集成隧道二极管振荡器（TDO）功能的10毫开尔文稀释制冷系统。TDO测量是测量样品电阻率的非接触式方法。冰箱和TDO将提供广泛探测无机和有机材料以及重费米子系统的电子和磁性所需的分辨率。它将进一步允许广泛的电子特性。 此外，稀释制冷机扩展了标准技术的能力，如直流电传输、磁化、比热和压力，允许它们在极端温度环境中进行。稀释制冷机系统与隧道二极管振荡器相结合，使科学家能够扩展先前研究的材料的相边界，并牢固地建立新系统的相边界。 这个系统是理想的重费米子系统目前正在增长的合作者从北卡罗来纳州AT大学，洛斯阿拉莫斯国家实验室和希腊。它还将帮助教授在PVAMU继续现有的初级物理学家经验计划，使高中三年级和四年级学生获得宝贵的实验室技能在少数服务机构。该计划将有助于增加代表性不足的科学家的数量。