Magnetic Ordering in Solid 3He

9800712亚当斯 这是一个低温物理的实验项目。 这项研究将利用佛罗里达大学的微开尔文实验室、佛罗里达大学和佛罗里达州立大学的国家高磁场实验室的设施。 研究重点是氦的同位素氦-3的磁性和热力学性质。固体氦-3显示出作为磁场和温度的函数的新颖且复杂的磁相。反铁磁有序的体心立方氦-3从高场相到顺磁相的转变将在以前无法获得的磁场和温度下进行研究。第二项调查将使用级联磁化的技术来研究在微开尔文范围内的温度下的六方密堆积相的铁磁有序。第三个项目将研究氦-4基质中冷冻氦-3液滴的磁性，氦-4是氦的另一种更常见的同位素。 这里表面效应影响氦-3的磁性的方式还不清楚。该研究为研究生和博士后研究人员提供了在（低）温度和超高磁场极端条件下物质性质的前沿研究方面的出色培训。这种背景为学生在一系列就业机会中的职业生涯做好准备，从基础研究到技术领域。 这是一个低温物理的实验项目。 该研究将利用佛罗里达大学Microkelvin实验室以及佛罗里达大学和佛罗里达州立大学国家高磁场实验室的设施。 的 研究重点 对 的 磁 以及磁有序固体氦-3（氦的同位素）的热力学性质。固体氦-3是一种模型磁性材料，其表现出作为磁场和温度的函数的复杂磁相。它的新颖之处在于，这些相仅在超低温和超高磁场下发现。 因此，这项研究需要世界上只有少数实验室才能提供的独特仪器，包括佛罗里达大学和佛罗里达州立大学。这些实验将研究氦-3在绝对零度百万分之几的温度下以及在十亿倍于地球磁场强度的磁场下的磁性。 结果是根本的利益，但相关的所有领域的磁性的磁性随温度或磁场。该研究为研究生和博士后研究人员提供了在（低）温度和超高磁场极端条件下物质性质的前沿研究方面的出色培训。这种背景为学生在一系列就业机会中的职业生涯做好准备，从基础研究到技术领域。 ***

9800712 Adams This is an experimental project in low temperature physics. The research will employ the facilities at the Microkelvin Laboratory at the University of Florida, and the National High Magnetic Field Laboratory at the University of Florida and Florida State University. The research focuses on magnetic and thermodynamic properties of solid Helium-3, an isotope of Helium. Solid Helium- 3 exhibits novel and complex magnetic phases as a function of magnetic field and temperature. The transition from the high- field phase to the paramagnetic phase of anti-ferromagnetically ordered body-centered-cubic Helium-3 will be investigated at magnetic fields and temperatures previously unavailable. A second investigation will use the technique of cascade magnetization to study ferromagnetic ordering of the hexagonal-close-packed phase at temperatures in the microKelvin range. A third project will study the magnetism of droplets of frozen Helium-3 in a matrix of Helium-4, the other and more common isotope of Helium. Here surface effects influence the magnetic properties of the Helium-3 in ways that are not understood. The research provides excellent training of graduate students and post-doctoral associates in cutting-edge research in the properties of matter at extremes of (low) temperature and ultra-high magnetic fields. This background prepares the students for careers in a range of employment opportunities, from basic research to technological areas. %%% This is an experimental project in low temperature physics. The research will employ the facilities at the Microkelvin Laboratory at the University of Florida, and the National High Magnetic Field Laboratory at the University of Florida and Florida State University. The research focuses on the magnetic and thermodynamic properties of magnetically ordered solid Helium-3, an isotope of Helium. Solid Helium-3 is a model magnetic mat erial that exhibits complex magnetic phases as a function of magnetic field and temperature. It is novel in that these phases are found only at ultra-low temperatures and at ultra-high magnetic fields. The research therefore demands unique instrumentation available only at a few laboratories in the world, including the University of Florida and Florida State University. The experiments will investigate the magnetic properties of Helium-3 at temperatures within a few millionths of absolute zero, and at magnetic fields that are a billion times the strength of the earth's magnetic field. The results are of fundamental interest but are relevant to all fields of magnetism where magnetic properties vary with temperature or magnetic field. The research provides excellent training of graduate students and post-doctoral associates in cutting-edge research in the properties of matter at extremes of (low) temperature and ultra-high magnetic fields. This background prepares the students for careers in a range of employment opportunities, from basic research to technological areas. ***