Beschreibung:
The ludwigite Ni5Sn(BO5)2 belongs to a family of oxyborates, and has an ordered distribution of nonmagnetic Sn ions. This material is studied here using magnetic measurements. Ni5Sn(BO5)2 does not show full long‐range magnetic order, but exhibits a partial ordering at 73 K. A theoretical group analysis is performed and different models of the magnetic structure of Ni5Sn(BO5)2 are discussed.