[10a-PB2-1~18] 13.2 Exploratory Materials, Physical Properties, Devices

[10a-PB2-14] Synthesis and Characterization of Type II SiGe clathrate

Hirotaka Hisamatsu¹, Kunihiko Yamada², Himanshu S. Jha¹, Fumitaka Ohashi^1,2, 〇Tetsuji Kume^1,2 (1.Gifu Univ. Eng., 2.Gifu Univ. NST)

Keywords:semiconductor clathrate, SiGe alloy

In previous work, Na_xSi_136-yGe_y has been prepared from a precursor of Na(Si_1-zGe_z). However, the guest free Si_136-yGe_y has not yet been synthesized. The previous synthesized Na_xSi_136-yGe_y showed a deviation from the Vegard's law. The aim of this work is to try synthesis of the gust free Si_136-yGe_y and to make characterization.