The clathrate Ba8CuxGe46−x−y□y: Phase equilibria and crystal structure

Phase relations at 700 °C, 800 °C and solidus temperatures have been derived for the clathrate system Ba8Cux Ge46−x −y □y via X-ray single crystal and powder diffractometry combined with electron probe micro analysis and differential thermal analysis. The ternary clathrate phase derives from binary Ba8Ge43□3 and extends up to x =6. Structure investigations define cubic primitive symmetry with the space group type View the MathML sourcePm3¯n consistent with a clathrate type I structure throughout the entire homogeneity region 0