FAR-INFRARED ABSORPTION BY BULK HIGH-TC SUPERCONDUCTORS USING AN OPTICALLY PUMPED CH3OH LASER

被引:7
作者
KAWATE, E
ONAE, A
ISIDA, K
TAMEGAI, T
MIKI, Y
OKAJI, M
机构
[1] SCI UNIV TOKYO,FAC SCI & TECHNOL,NODA,CHIBA 278,JAPAN
[2] UNIV TOKYO,INST SOLID STATE PHYS,MINATO KU,TOKYO 106,JAPAN
来源
PHYSICAL REVIEW B | 1991年 / 43卷 / 16期
关键词
D O I
10.1103/PhysRevB.43.12976
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We have developed a far-infrared-absorption-measurement method using an optically pumped far-infrared laser. The temperature dependence of the light absorption by high-T(c) superconductors has been investigated for the photon energy between 7.6 and 17.6 meV in the temperature region between 12 and 160 K. A well-defined transition temperature was obtained from the absorption measurement. With decreasing temperature, the absorption decreased, but did not reach zero even at sufficiently low temperatures.
引用
收藏
页码:12976 / 12979
页数:4
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