Aquisition of a SQUID Magnetometer for Research and Education

该合同将为位于佛罗里达州杰克逊维尔的北佛罗里达大学的SQUID（超导量子干涉装置）磁力计的采购提供部分支持，该磁力计目前没有类似的系统。SQUID磁力计采用一种非常灵敏的技术，在1.9-400 K的温度范围内，在高达7特斯拉的磁场中，对总磁化强度较低的样品进行磁测量。该仪器是自动化的，可以以相对较低的成本获取大量数据。高度的灵敏度，自动化和低成本的结合导致了一个非常强大的研究工具，能够为几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都将使用SQUID磁力计。在每种情况下，该仪器将为研究领域提供重要的新能力，包括III-VI和II-VI稀释磁性半导体，III-V半导体中的磁性团簇，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。拟议文书的最终影响不仅将使新的问题得到处理，而且还将导致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位于佛罗里达州塔拉哈西（距离北佛罗里达大学只有几个小时的车程）的国家高磁场实验室（NHMFL）最先进的设施。对于低于7特斯拉的磁场，SQUID磁力计明显比NHMFL更具成本效益，并且可以释放NHMFL的磁体时间，否则将需要较低的磁场测量。该仪器将被纳入高等物理实验室，作为这门物理专业高级本科课程的重点。这将使物理学专业的本科生有机会使用一个非常强大的研究工具来研究经典系统和当前研究领域的基本物理现象。这台仪器的获得将大大提高该机构以及其他几家机构研究人员的研究能力，并丰富学生的教育经验

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.***