“…In this paper we report on the crystal structure of the new phase as well as on its magnetic, electrical and thermodynamic behavior at low temperatures. The structural and physical properties of Yb 3 Pt 23 Si 11 are compared with those of the related compounds: La 3 Pt 23 Si 11 [3], Ce 3 Pt 23 Si 11 [3][4][5][6], Ce 3 Pt 23 Ge 11 [7,8], and U 3 Pt 23 Si 11 [9,10].…”