Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-37-C8-38
DOI: 10.1051/jphyscol:1988807
OPTICAL REFLECTIVITY SPECTRA AND ELECTRONIC STRUCTURES IN Fe7Se8 AND Co7Se8
K. Sato1, H. Kida1, 2, M. Fujisawa3 et T. Kamimura41 Tokyo Univ. of Agric. & Technol, Koganei, Tokyo 184, Japan
2 Takenaka Komuten Co. Ltd., Kobe 640, Japan.
3 Synchrotron Lab., Univ. Tokyo, Tanashi, Tokyo 188, Japan
4 Tohoku Univ., Kawauchi, Sendai, Miyagi 980, Japan
Abstract
Spectra of optical conductivity and UPS have been measured in single crystals of Fe7Se8 and Co7Se8. Experimental spectra in Fe7Se8 showed good correspondence with the DOS (density of state) spectrum obtained from the band calculation in FeSe. Magnetic properties of these crystals are discussed in connection with the electronic structures.