| 摘要 |
PROBLEM TO BE SOLVED: To provide a novel compound obtained in a Cu-Hf-S system useful as semiconductor, etc., and its production method. SOLUTION: Metal Cu, Hf, and HfS2 , CuS or S having 2:1:3 Cu:Hf:S atomic ratio are mixed, and mixed powder is compacted to form a green compact and heated at 600-1300 deg.C for more than two days in an evacuated sealed tube to produce a sintered compact being a compound having a trigonal structure shown as Cu2 HfS3 . |
