Crystal growth and structure of MnGa2Te4

✍ Scribed by M. Cannas; A. Garbato; L. Garbato; F. Ledda; G. Navarra

• Book ID: 103983631
• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 647 KB
• Volume: 32
• Category: Article
• ISSN: 0960-8974
• DOI: 10.1016/0960-8974(95)00020-8

✦ Synopsis

Single crystals of MnGa2Te 4 were grown from the melt using the directional freezing technique. They crystallize in the monoclinic system, a=11.999(3), b=11.999(3), c=24.922(6) A, ~=104.01(2) °, Z=16 MnGa2Te 4 units, space group C2/c. The structure was solved by direct methods and refined to Rw=0.035 for 791 observed reflections and to Rw=0.062 for 3067 independently measured reflections. Te atoms form an arrangement which is a superlattice of anion lattice of [3-Cu2HgI 4. On the contrary, the same model does not conform cation lattice, because 1/3 of metal atoms occupy positions displaced from tetrahedral sites.