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FAR-INFRARED AND INFRARED REFLECTIONS OF Tl2Ba2Ca2Cu3O10 FILM
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)
Acta Physica Sinica (Overseas Edition), 1992, 1 (1):
51-56.
DOI: 10.1088/1004-423X/1/1/006
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.
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