Studies in Flux Motion in High Temperature Superconductors

该奖项将支持佛罗里达州立大学的William G. Moulton教授与哥斯达黎加大学的neville Clark和Alejandro Saenz教授合作进行的一项研究。他们的研究目标是研究高温超导体中的磁钉和涡旋动力学。霍尔微探针将用于观察由力和热梯度驱动的流体运动。研究将在佛罗里达州立大学生产的薄膜上进行，研究钉钉力和涡旋行为作为磁场和温度的函数。研究了磁通晶格和磁通熔化相以及薄膜的微观结构对磁通晶格和钉钉的影响。希望能进一步观测到二维到三维转换的证据。通过在一个共同感兴趣的项目中提供专家人员和设施，有助于哥斯达黎加的科学发展，该项目实现了发展中国家科学计划的目标。

This award will support Professor William G. Moulton of Florida State University in a research collaboration with Professors Nevill Clark and Alejandro Saenz of the University of Costa Rica. The goal of their research is to study flux pinning and vortex dynamics in high Tc superconductors. A Hall microprobe will be used to observe fluxoid motion driven by both force and thermal gradients. Studies will be made on thin films, produced at Florida State, of pinning forces and vortex behavior as a function of magnetic field and tempera- ture. The effect of the flux lattice and flux melting phases and the microstructure of the films on the flux lattice and pinning also will be studied. It is hoped that further evidence of 2 to 3D transitions can be observed. By providing expert personnel and facilities in a project of mutual interest that contributes to the scientific development of Costa Rica, this project fulfills the objectives of the Science in Developing Countries Program.