Aquisition of a SQUID Magnetometer for Research and Education

采购用于研究和教育的 SQUID 磁力计

• 批准号: 9975887
• 负责人: Thomas Pekarek
• 金额: $ 10.58万
• 依托单位: University of North Florida
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-08-15 至 2000-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9975887&HistoricalAwards=false
• 关键词: Aquisition; SQUID; Magnetometer; Research; Education

9975887PekarekThis award will provide partial support for the acquisition of a SQUID (Superconducting QUantum Interference Device) magnetometer that will be located at the University of North Florida in Jacksonville, Florida where no similar system currently exists. The SQUID magnetometer uses an extremely sensitive technique for magnetic measurements of samples with low total magnetization over a temperature range from 1.9-400 K in fields up to 7 Tesla. The proposed instrument is automated and can acquire a large amount of data at a relatively low cost. The combination of extreme sensitivity, automation, and low cost result in a very powerful research tool capable of providing high-quality data for several research groups.Research groups at the University of North Florida, University of Northern Iowa, and Fordham University will all utilize the SQUID magnetometer. In each case, the instrument will provide significant new capabilities to the research areas including III-VI and II-VI Diluted Magnetic Semiconductors, magnetic clusters in III-V semi-conductors, and magnetic rare earth and rare earth-transition metal alloys. In many cases, the data gathered from the SQUID magnetometer will allow the current research projects to address new significant issues directly related to the current studies. The final impacts of the proposed instrument will not only allow new issues to be addressed but it will also lead to a more comprehensive analysis of the systems under study.The data obtained by this instrument complements the state-of-the-art facilities at the National High Magnetic Field Laboratory (NHMFL), which is located in Tallahassee, Florida (only a few hours drive from the University of North Florida). The SQUID magnetometer is significantly more cost effective than the NHMFL for fields below 7 Tesla and would free up magnet time at the NHMFL that would otherwise be requested for lower field measurements.This instrument will be incorporated into the Advanced Physics Laboratory as a prominent focus of this senior-level undergraduate course for physics majors. This will allow undergraduate physics majors the opportunity to investigate fundamental physics phenomena in classic systems as well as in current research areas using a very powerful research tool.%%%The acquisition of this instrument will significantly enhance the research capabilities of investigators at this institution, as well as at several others, and enrich the educational experience of students.***

9975887Pekarek 该奖项将为购买 SQUID（超导量子干涉装置）磁力计提供部分支持，该磁力计将位于佛罗里达州杰克逊维尔的北佛罗里达大学，该大学目前尚无类似系统。 SQUID 磁力计采用极其灵敏的技术，可在 1.9-400 K 的温度范围内、高达 7 特斯拉的磁场中对总磁化强度较低的样品进行磁性测量。 所提出的仪器是自动化的，可以以相对较低的成本获取大量数据。 极高的灵敏度、自动化和低成本相结合，形成了一个非常强大的研究工具，能够为多个研究小组提供高质量的数据。北佛罗里达大学、北爱荷华大学和福特汉姆大学的研究小组将全部利用SQUID 磁力计。 在每种情况下，该仪器都将为研究领域提供重要的新功能，包括 III-VI 和 II-VI 稀磁半导体、III-V 半导体中的磁簇以及磁性稀土和稀土过渡金属合金。 在许多情况下，从 SQUID 磁力计收集的数据将使当前的研究项目能够解决与当前研究直接相关的新的重大问题。 拟议仪器的最终影响不仅将解决新问题，而且还将对所研究的系统进行更全面的分析。该仪器获得的数据补充了该中心最先进的设施。国家强磁场实验室（NHMFL），位于佛罗里达州塔拉哈西（距离北佛罗里达大学仅几个小时车程）。 对于低于 7 特斯拉的磁场，SQUID 磁力计比 NHMFL 更具成本效益，并且可以节省 NHMFL 上的磁体时间，否则需要进行较低磁场测量。该仪器将作为一个突出焦点并入高级物理实验室。本课程为物理专业本科高年级课程。 这将使物理专业的本科生有机会使用非常强大的研究工具来研究经典系统以及当前研究领域的基础物理现象。%%%购买该仪器将显着增强该机构研究人员的研究能力，以及其他几个，并丰富学生的教育经验。***