Optical Properties of Infinite-layer Superconductors Sr$_{0.9}$Ln$_{0.1}$CuO$_{2}$ (Ln=La, Gd, Sm)

Mun, Mi-Ock (Institute of Physics and Applied Physics and Department of Physics, Yonsei University) ;
Rho, Young-Sub (Institute of Physics and Applied Physics and Department of Physics, Yonsei University) ;
Kim, Ki-Bum (Institute of Physics and Applied Physics and Department of Physics, Yonsei University) ;
Kim, Jae H. (Institute of Physics and Applied Physics and Department of Physics, Yonsei University) ;
Kuz'menko, A.B. (material Science Center, University of Groningen) ;
Marel, D.van der (material Science Center, University of Groningen) ;
Jung, C.U. (National Creative Research Initiative Center for Superconductivity and Department of Physics, Pohang University of Science and Technology) ;
Kim, J.Y. (National Creative Research Initiative Center for Superconductivity and Department of Physics, Pohang University of Science and Technology) ;
Lee, H.J. (National Creative Research Initiative Center for Superconductivity and Department of Physics, Pohang University of Science and Technology) ;
Lee, Sung-Ik (National Creative Research Initiative Center for Superconductivity and Department of Physics, Pohang University of Science and Technology)