Optical conductivity of Energy gap and mid-infrared peak in diluted Kondo semiconductors
H. Okamura, M. Matsunami, T. Inaoka, T. Nanba, S. Kimura, F. Iga, S. Hiura, J. Klijn, and T. Takabatake
Phys. Rev. B 62, R13265(R) (2000) - Published 15 November, 2000