A study of the magnetic structure of TbMn0.33Ge2 has been made using a neut
ron diffractometer of better resolution and new results have been obtained.
The paramagnetic neutron diffraction data confirmed the CeNiSi2-type of cr
ystal structure reported earlier for this compound. The magnetic moments ar
e located on terbium. At 1.5 K the Tb magnetic moments have two components:
a collinear and sine wave modulated one so the magnetic order at this temp
erature has a complex character. With increasing temperature, the change of
the magnetic structure to the sine wave modulated one is observed near the
Neel temperature T-N = 28 K. (C) 2001 Elsevier Science B.V. All rights res
erved.