New ternary Yb5Sb3-type R5T1−x{Sb, Bi}2+x phases (R = Y, Dy, Ho, T = Co, Ru, Rh, Pd) and their magnetic properties

Several novel R5T1−x{Sb,Bi}2+x phases having the Yb5Sb3-type structure (space group Pnma) have been synthesized. The cell parameters are: a = 1.20668(9), b = 0.88396(7), c = 0.78745(7) nm for Y5CoSb2; a = 1.19939(7), b = 0.88364(5), c = 0.78283(5) nm for Dy5CoSb2; a = 1.19633(8), b = 0.89231(6), c = 0.78450(6) nm for Ho5RhSb2; a = 1.18650(6), b = 0.90455(4), c = 0.79260(4) nm for Ho5PdSb2; a = 1.2215(3), b = 0.8948(2), c = 0.7977(2) nm for …