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Title: Effects of oxygen deficiency on the magnetic ordering of Mn in Tb0.9Na0.1MnO2.9
Authors: Yang, CC
Wu, CM
Li, WH
Chan, TS
Liu, RS
Chen, YY
Avdeev, M
Keywords: Perovskites
Oxide minerals
Ferrimagnetic materials
Issue Date: 12-Mar-2008
Publisher: Institute of Physics
Citation: Yang, C. C., Wu, C. M., Li, W. H., Chan, T. S., Liu, R. S., Chen, Y. Y., & Avdeev, M., (2008). Effects of oxygen deficiency on the magnetic ordering of Mn in (TbNa0.1MnO2.9)-Na-0.9. Journal of Physics-Condensed Matter, 20(10), 104234. doi:10.1088/0953-8984/20/10/104234
Abstract: Monovalent Na+ ions have been incorporated into a multiferroic TbMnO3 compound. Structural studies, using high-resolution neutron diffraction patterns, show that monovalent Na+-doping results in a noticeable oxygen deficiency in the compound. The alternations in crystalline and magnetic structures due to oxygen deficiency are investigated by neutron diffraction and magnetic susceptibility measurements. Na-doping turns the modulated incommensurate Mn spin structure, observed for the parent compound, into a simple commensurate one. The observed magnetic diffraction patterns agree very well with that calculated assuming a D-type arrangement for the Mn spins, with the moments pointing along the c-axis direction. No significant alternation in the ordering temperature of the Mn moments is found. © 2008, Institute of Physics
Gov't Doc #: 1432
ISSN: 0953-8984
Appears in Collections:Journal Articles

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