Study of the optical features of YBa2Cu3O7-x films by SEW spectroscopy |
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| Authors: | V Vaicikauskas G N Zhizhin and V A Yakovlev |
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| Institution: | (1) Institute of Physics, Lithuanian Academy of Sciences, Gostauto, 12, 232600 Vilnius, Lithuania |
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| Abstract: | The results of YBa2Cu3O7-x films on SrTiO3 investigation by far infrared surface electromagnetic waves (SEW) amplitude and phase spectroscopy at temperatures 80–350 K are presented. Strong SEW absorption at frequency 142 cm–1 has been observed. The origin of the observed absorbtion is proposed to be concerned with slab- phonons in YBa2Cu3O7-x. The optical constants of the films have been obtained. Also has been determined, that only the imaginary part of the SEW refraction index changes when the film transits into superconducting state, while the real part remains unchanged. |
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