不同氧含量YBaCuO超导体远红外反射光谱研究  

STUDIES OF FAR-INFRARED REFLECTANCE SPECTRA OF YBaCuO SUPERCONDUCTORS WITH DIFFERENT OXYGEN CONTENTS

作　　者：曾文生[1] 张贵忠[1] 李增发[1] 张光寅[1] 杨小明[2] 阎杰[2] 

机构地区：[1]南开大学物理系,天津300071 [2]南开大学化学系,天津300071

出　　处：《红外与毫米波学报》1991年第3期181-186,共6页Journal of Infrared and Millimeter Waves

摘　　要：对YBa_2Cu_3O_(7-δ)块材料进行了空气淬火实验和红外反射光谱测量。利用Drude模型及Lorentz声子研究反射光谱,得到载流子浓度与淬火温度关系。利用声子的异常敏感性讨论了反射光谱中声子强度的变化。The air quenching experiments on the bulk YBa_2Cu_3O_(1-δ) superconductors are performed. Their far-infrared reflectance spectra are measured and calculated by the Drude model and the Lorentzian phonons. The relation between carrier concentration and the quenching temperature is obtained. The changes of the phonon strengths in the spectra are discussed using the phonon's abnormal sensibility.

关 键 词：钇钡铜氧 红外光谱 淬火 超导体 

分 类 号：TM262[一般工业技术—材料科学与工程]