Investigation of substitution effects and the phase transition in type-I clathrates RbxCs8–xSn44□2 (1.3≤x≤2.1) using single-crystal X-ray diffraction, Raman spectroscopy, heat capacity and electrical resistivity measurements
Keywords: فلزات قلیایی; Alkali metals; Cation substitution; Electrical conductivity; Heat capacity; Raman spectroscopy; Type-I clathrates