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|Title:||B-site ordering and magnetic behaviours in Ni-doped double perovskite Sr2FeMoO6||Authors:||Chen, L.
|Issue Date:||21-Nov-2005||Citation:||Chen, L., Yuan, C., Xue, J., Wang, J. (2005-11-21). B-site ordering and magnetic behaviours in Ni-doped double perovskite Sr2FeMoO6. Journal of Physics D: Applied Physics 38 (22) : 4003-4008. ScholarBank@NUS Repository. https://doi.org/10.1088/0022-3727/38/22/001||Abstract:||The crystal structure and magnetic properties of polycrystalline Sr 2(Fe1-xNix)MoO6 (0.0 ≤ x ≤ 0.2) synthesized via a mechanical activation route have been investigated. Rietveld refinement of the x-ray diffraction data indicates that the long-range order parameter (S) among octahedral B sites in Sr2(Fe 1-xNix)MoO6 is significantly enhanced by an increasing level of Ni doping. The B-site ordering results in a decrease in the lattice dimensions and an increase in lattice tetragonal distortion. Consequently, magnetization of the Ni-doped Sr2FeMoO6 is progressively improved by an increasing level of Ni doping. The Curie temperature (Tc) in Sr2(Fe1-xNi x)MoO6 is also raised systematically by Ni doping, from Tc ≤ 411 K for x ≤ 0 to Tc ≤ 432 K for x ≤ 0.20. Magnetization and Curie temperature in Sr2(Fe 1-xNix)MoO6 depend almost linearly on both the level of Ni doping and B-site long-range order parameter S. © 2005 IOP Publishing Ltd.||Source Title:||Journal of Physics D: Applied Physics||URI:||http://scholarbank.nus.edu.sg/handle/10635/106971||ISSN:||00223727||DOI:||10.1088/0022-3727/38/22/001|
|Appears in Collections:||Staff Publications|
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