Crystal Growth, Structure and Property Relationships of Yb Intermetallics

本项目旨在培养和表征稀土金属间化合物单晶，关联其结构和性质，并寻找新的现象。这些单晶材料的合成将成为新材料化学基础研究的主要推动力之一。为了清楚地了解新材料的物理性质，必须培养大的（至少2-5毫米）和高质量的晶体来测量性质。培训未来的晶体种植者与国家实验室的合作者以及国际科学家进行互动，对于推进材料研究至关重要。参与该项目的学生将继续参与教育活动，如动手演示和开发与材料相关的演示。PI还将继续努力在高中、本科和研究生阶段向代表性不足的少数民族伸出援助之手。由于自旋电子学的新兴领域，流动电子介导的交换机制和自旋相关引起了人们的极大兴趣。该项目的目标是在镧系-铜-X （X =镓、锡、锑）体系中生长铈、镱和镱金属间相的单晶，在该体系中可以观察和研究重费米子行为、超导性、磁性和/或磁阻的现象和/或含义。新的金属间化合物家族将以相关结构和性质的动机进行研究，特别是揭示由量子涨落引起的紧急有序相。学生将进行动手演示，并将开发与化学演示课程相关的材料演示。PI还将在高中、本科和研究生阶段为代表性不足的少数民族制定外联项目。学生将与国家实验室的合作者以及国际科学家进行互动。

This project aims to grow and characterize single crystals of rare earth intermetallics, correlate their structure and properties, and look for new phenomena. The synthesis of these materials in single crystalline form will be addressed as one of the primary driving forces of basic research in the chemistry of new materials. To understand physical properties of novel materials clearly, it is essential to grow crystals that are large (at least 2-5 mm3) and of high quality for the measurement of properties. Training future crystal growers to interact with collaborators in national labs as well with international scientists is vital to advancing materials research. Students involved in this project will continue to be involved in educational activities such as doing hands on demonstrations and developing materials-related demonstrations. The PI will also continue with outreach efforts to under-represented minorities at the high school, undergraduate and graduate level. %%%The exchange mechanisms and spin correlations mediated by itinerant electrons have attracted much interest due to the emerging field of spin electronics. A goal for this project is to grow single crystals of cerium and ytterbium and ytterbium intermetallic phases in the lanthanide-copper-X (X = gallium, tin, antimony) systems in which the phenomena and/or implications of heavy fermion behavior, superconductivity, magnetism and/or magnetoresistance may be observed and studied. New families of intermetallics will be investigated with the motivation of correlating structure and properties, in particular uncovering emergent ordered phases arising from quantum fluctuations. Students will perform hands on demonstrations and will develop materials-related demonstrations for incorporation into Chem Demo programs. The PI will also develop outreach projects for under-represented minorities at the high school, undergraduate and graduate level. Students will interact with collaborators in national labs as well with international scientists.