Undergraduate Laboratory on the Measurement of Temperature Dependent Properties of Materials.

研究与材料性质相关的潜在机制的最好方法之一是测量材料固有性质的温度依赖性。这一事实在回顾目前正在进行的新高温超导体工作中得到了有力的体现。尽管了解这类测量的重要性和进行测量所涉及的技术很重要，但许多学生在实验室接触这一领域的机会很少。在这个项目中，将开发两个测量与温度相关的性质的系统，供上层和下层学生实验室使用。这些系统将包括两个用于样品冷却和温度控制的Hansen High-Tran液体传输系统，以及两个用于数据采集和实时分析的惠普150系列个人计算机系统。新设备将用于二年级的现代物理实验室，用于测量可以用简单的自由电子模型解释的输运性质；高级高级实验室，用于研究超导体、准低维导体和其他新材料的性质；以及个人学生研究项目。

One of the best methods for studying the underlying mechanisms associated with the properties of a material is to make measurements of the temperature dependence of intrinsic properties of the material. This fact has been brought home forcefully in reviewing the work currently in progress on the new high Tc superconductors. Despite the importance of understanding the significance of such measurements and the techniques involved in making them, many students have had very little opportunity for laboratory exposure in this area. In this project two systems for the measurement of temperature dependent properties will be developed for use in the upper and lower level student laboratories. The systems will include two Hansen High-Tran Liquid Transfer Systems, for sample cooling and temperature control, and two Hewlett Packard 150 series personal computer systems for data acquisition and real-time analysis. The new equipment will be used in the sophomore-level modern physics laboratory to make measurements of transport properties that can be explained in terms of a simple free-electron model, in the senior-level advanced laboratory to investigate the properties of superconductors, quasi-low dimensional conductors and other novel materials, and also in individual student research projects.