Infrared, Elastic and Thermal Anomalies in Low-Dimensional Conductors

将对低维导体进行红外线、比热和弹性测量。红外实验的目的是了解孤子在具有第三和四分之一填充带的电荷密度波化合物中的作用。应变和光调制光谱将对蓝色青铜、TaS3和四甲基碘化物-TCNQ进行。弹性测量将在10赫兹到10兆赫的范围内进行，以跟踪弹性异常对频率、温度和电场的依赖关系，以及“切换”、磁场和应变的影响。同样的装置可以用来研究2D超导体中的磁通去钉扎。将建造一个交流量热计来检查相变时的特定热异常，并将研究使用镉钨半导体作为温度计。

Infrared, specific heat, and elastic measurements on low- dimensional conductors are to be carried out. The goal of the IR experiments is to understand the role of solitons in charge- density-wave compounds with third- and quarter-filled bands. Strain and photo-modulation spectroscopy will be carried out on blue bronze, TaS3, and tetra-methyl-iodide-TCNQ. Elastic measurements will be implemented in the range 10 Hz to 10 MHz, in order to trace dependencies of elastic anomalies on frequency, temperature, and electric field, as well as effects of "switching", magnetic fields, and strain. The same apparatus can be used to study flux depinning in 2D superconductors. An ac calorimeter will be constructed to examine specific heat anomalies at phase transitions, and the use of CDW semiconductors as thermometers will be studied.