Applied Physics A

, Volume 74, Supplement 1, pp s1040–s1042

Crystal structure and spiral magnetic ordering of BiFeO3 doped with manganese

  • I. Sosnowska
  • W. Schäfer
  • W. Kockelmann
  • K.H. Andersen
  • I.O. Troyanchuk

DOI: 10.1007/s003390201604

Cite this article as:
Sosnowska, I., Schäfer, W., Kockelmann, W. et al. Appl Phys A (2002) 74: s1040. doi:10.1007/s003390201604

Abstract.

Neutron powder diffraction has been performed on polycrystalline BiMnxFe1-xO3 (x=0, 0.1 and 0.2). The structures of the doped compounds are described by the space group R3c of ferroelectric BiFeO3. Refined structure parameters are presented. Mn doping generates microstructural changes manifested by broadening in the diffraction patterns. The lattice parameters show a non-linear behaviour from 4 K to 630 K. Mn doping results in a transformation of the long-range spiral spin modulation of BiFeO3 to a collinear antiferromagnetic structure with spins along c. The average magnetic moments and the ordering temperatures decrease with increasing Mn concentration.

PACS: 61.; 75

Copyright information

© Springer-Verlag 2002

Authors and Affiliations

  • I. Sosnowska
    • 1
  • W. Schäfer
    • 2
  • W. Kockelmann
    • 2
  • K.H. Andersen
    • 3
  • I.O. Troyanchuk
    • 4
  1. 1.Institute of Experimental Physics, Warsaw University, Hoza 69, 00-681 Warsaw, PolandPL
  2. 2.Mineralogical-Petrological Institute, Bonn University, 53115 Bonn, GermanyDE
  3. 3.ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, OX11 0QX, UKGB
  4. 4.Institute of Solids and Semiconductor Physics, NAS P., 220072 Minsk, BelarusBY