A neutron diffraction study of the R15Ge9C compounds (R=Ce, Pr, Nd).

Highlights: [•] Neutron diffraction study was performed on the germanides R15Ge9C (R=Ce, Pr, Nd). [•] The interstitial carbon atoms occupy mainly the site 2b in (1/32/3∼1/2). [•] The three compounds display canted ferromagnetic structures with k =[000]. [•] Carbon insertion strongly modifies the magnetic properties of the parent germanides. [Copyright &y& Elsevier]