Magnetic structure of the HoNiO3 perovskite -: art. no. 144417

Neutron diffraction data collected on polycrystalline HoNiO3 have been used to investigate the magnetic behavior of the Ni and Ho sublattices in the monoclinic insulating phase of this oxide. Different propagation vectors, k=(1/2,0,1/2) and k=0, are found for the Ni and Ho sublattices, respectively. Possible collinear and noncollinear magnetic ordering of the Ni moments are discussed, supporting the idea that even in the insulating phase, carriers keep a certain degree of delocalization as a consequence of the strong p-d hybridization.