RUI: Magnetic and Superconducting Properties of Nickel Borocarbides

这是一个更新的建议，从PI在一个本科院校的研究探索超导性和磁性之间的关系，在镍硼碳化物家庭的材料。 总体目标是识别和表征这些材料的基态。具体地，将使用热膨胀计来测量磁性材料YbNi 2B 2C和磁性超导体TmNi 2B 2C的热膨胀和磁致伸缩。 此外，将进行Tm化合物的磁化强度和临界场测量。 其目的是表征前者材料中的重费米子态和后者中的磁态。 此外，本科生将参与这项研究。 大部分工作将在西方学院的校园内完成，其余的工作将在国家高磁场实验室进行。 本科生将充分参与这个项目，并获得第一手的经验，做研究，并与科学家在一个主要的研究环境互动。%这个研究项目将在西方学院和国家高磁场实验室与本科生一起进行。 该研究的重点是实验测定镍-硼-碳化合物家族的两个成员的某些磁性和超导性质。 这些结果将有助于对超导性的理解。 此外，该项目具有很强的教育成分。 本科生参与者将获得凝聚态物理学当前最前沿领域之一的经验。 除了他们在西方学院所做的工作，他们在国家高磁场实验室的存在将使他们在一个主要的研究环境中进行研究的经验，在那里他们将与经验丰富的科学家作为研究同事互动。

This is a renewal proposal from a PI at an undergraduate institution for research exploring the relationship between superconductivity and magnetism in the nickel borocarbide family of materials. The overall goal is to identify and characterize the ground states of these materials. Specifically, a dilatometer will be used to measure the thermal expansion and magnetostriction of the magnetic material YbNi2B2C and the magnetic superconductor TmNi2B2C. In addition magnetization and critical field measurements of the Tm compound will be carried out. The intent is to characterize the heavy fermion state in the former material and the magnetic states in the latter. Furthermore, undergraduate students will participate in this research. Most of the work will be done on the campus of Occidental College, with the remainder at the National High Magnetic Field Laboratory. The undergraduate students will fully engage in this project and gain first hand experience to do research and interact with scientists in a major research environment.%%%This research project will be conducted with undergraduate students at Occidental College and at the National High Magnetic Field Laboratory. The research focuses on the experimental determination of certain magnetic and superconducting properties of two members of a family of nickel-boron-carbon compounds. The results will contribute to the understanding of superconductivity. Moreover, this project has a very strong educational component. The undergraduate participants will gain experience in one of the current forefront areas of condensed matter physics. In addition to their work done at Occidental College their presence at the National High Magnetic Field Laboratory will give them experience in research conducted in a major research environment, where they will interact with experienced scientists as research colleagues.***