FAR-INFRARED AND INFRARED REFLECTIONS OF Tl2Ba2Ca2Cu3O10 FILM
YE HONG-JUAN (叶红娟)a, HU CAN-MING (胡灿明)a, HUANG YE-XIAO (黄叶肖)a, LU XIAO-FENG (陆晓峰)a, WANG ZHI-TAO (王志涛)a, ZENG WEN-SHENG (曾文生)b, ZHANG GUANG-YIN (张光寅)b, YAN SHAO-LIN (阎少林)b
aNational Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Academia Sinica, Shanghai 200083, China; bDepartment of Physics. Nankai University, Tianjin 300071. China
Abstract The far-infrared and infrared reflection spectra of Tl2Ba2Ca2Cu3O10 superconducting film are reported in this paper. It is found there are three sharp reflection edges in both the superconducting and normal states, their positions being near ≈ 150, ≈ 350 and ≈600 cm-1. We attribute these reflection spectra to the Drude free carriers and a wide mid-infrared absorption band. When the incident angle increases from 7° to 30°, some additional stractures appear in the refiection spectra, which are the A2u phonon modes vibrating along c-axis.
Received: 12 July 1990
Accepted manuscript online:
YE HONG-JUAN (叶红娟), HU CAN-MING (胡灿明), HUANG YE-XIAO (黄叶肖), LU XIAO-FENG (陆晓峰), WANG ZHI-TAO (王志涛), ZENG WEN-SHENG (曾文生), ZHANG GUANG-YIN (张光寅), YAN SHAO-LIN (阎少林) FAR-INFRARED AND INFRARED REFLECTIONS OF Tl2Ba2Ca2Cu3O10 FILM 1992 Acta Physica Sinica (Overseas Edition) 1 51
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