Optical Investigations on Spin Density Wave Instability and Pseudogap Formation in $EuFe_2As_2$

Moon, S.J. (ReCOE & FPRD, Department of Physics and Astronomy, Seoul National University) ;
Shin, J.H. (ReCOE & FPRD, Department of Physics and Astronomy, Seoul National University) ;
Parker, D. (Naval Research Laboratory) ;
Choi, W.S. (ReCOE & FPRD, Department of Physics and Astronomy, Seoul National University) ;
Mazin, I.I. (Naval Research Laboratory) ;
Lee, Y.S. (Department of Physics, Soongsil University) ;
Kim, J.Y. (Center for Frontier Materials and Department of Materials Science and Engineering, GIST) ;
Cho, B.K. (Center for Frontier Materials and Department of Materials Science and Engineering, GIST) ;
Khim, S.H. (CSCMR & FPRD, Department of Physics and Astronomy, Seoul National University) ;
Kim, J.S. (CSCMR & FPRD, Department of Physics and Astronomy, Seoul National University) ;
Kim, K.H. (CSCMR & FPRD, Department of Physics and Astronomy, Seoul National University) ;
Noh, T.W. (ReCOE & FPRD, Department of Physics and Astronomy, Seoul National University)