“…The RMn 6 Sn 6 (R = Sc, Y, Gd-Tm, Lu) compounds crystallize in the HfFe 6 Sn 6 -type structure (space group: P6/mmm) [1][2][3][4][5][6][7][8][9], which can be described as built of alternate (0 0 1) layers containing R and Mn atoms, respectively. According to the magnetic measurements [3], the RMn 6 Sn 6 (R = Gd, Tb, Dy, Ho) compounds are ferrimagnetic below 435, 423, 393 and 373 K, respectively.…”