TY - JOUR
T1 - Optical conductivity in superconducting layered cuprate oxides
AU - Takahashi, S.
AU - Tachiki, M.
N1 - Funding Information:
The authors would like to express their sincere thanks to Prof. F. Steglich, Prof. H. Matsumoto, Dr. T. Koyama and Mr. M. Machida for their valuable discussions. This work was supported by a Grant-in-Aid from the Ministry of Education, Science and Culture, Japan.
PY - 1990/10/1
Y1 - 1990/10/1
N2 - Various properties of the cuprate oxides are explained by a layer model in which normal and superconducting layers are alternately stacked and the bulk superconductivity is maintained by the proximity effect. By using this model, the optical conductivity of the cuprate oxides is calculated. The result for YBa2Cu3O7 is that the optical conductivity for the light polarized parallel to the CuO chain has finite values even for frequencies below the gap, although the conductivity for the light perpendicular to the chain vanishes below the gap, as in the conventional superconductors. The character of the optical conductivities is seen in the results of the optical conductivities measured by Schlesinger et al. using untwinned YBa2Cu3O7 single crystals.
AB - Various properties of the cuprate oxides are explained by a layer model in which normal and superconducting layers are alternately stacked and the bulk superconductivity is maintained by the proximity effect. By using this model, the optical conductivity of the cuprate oxides is calculated. The result for YBa2Cu3O7 is that the optical conductivity for the light polarized parallel to the CuO chain has finite values even for frequencies below the gap, although the conductivity for the light perpendicular to the chain vanishes below the gap, as in the conventional superconductors. The character of the optical conductivities is seen in the results of the optical conductivities measured by Schlesinger et al. using untwinned YBa2Cu3O7 single crystals.
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U2 - 10.1016/0921-4534(90)90023-8
DO - 10.1016/0921-4534(90)90023-8
M3 - Article
AN - SCOPUS:0025503026
VL - 170
SP - 505
EP - 512
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - 5-6
ER -