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Phys. Rev. B 64, 144417 (2001) [5 pages]

Magnetic structure of the HoNiO3 perovskite

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M. T. Fernández-Díaz
Institut Laue Langevin, BP 156x, F-38042 Grenoble Cedex 9, France

J. A. Alonso, M. J. Martínez-Lope, and M. T. Casais
Instituto de Ciencia de Materiales de Madrid, C.S.I.C., Cantoblanco, E-28049, Madrid, Spain

J. L. García-Muñoz
Institut de Ciència de Materials de Barcelona, C.S.I.C., Campus UAB, E-08193, Bellaterra, Barcelona, Spain

Received 12 April 2001; published 19 September 2001

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.

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.64.144417
DOI:
10.1103/PhysRevB.64.144417
PACS:
71.30.+h, 71.45.Lr, 71.38.-k, 75.25.+z