TY - JOUR
T1 - Synthesis, structural, and magnetic characterisation of magnesium-doped lithium ferrite of composition Li0.5Fe2.5O4
AU - Widatallah, Hisham M.
AU - Johnson, Clive
AU - Berry, Frank
AU - Pekala, Marek
N1 - Funding Information:
We thank the Gordon Memorial College Trust Fund (HMW) and the Polish Committee for Scientific Research (MP) for financial support.
PY - 2001/10/1
Y1 - 2001/10/1
N2 - Spinel-related magnesium-doped Li0.5Fe2.5O4 has been synthesised by heating magnesium-substituted corundum-related α-Fe2O3 with Li2CO3 at 600°C which is ca. 600°C lower than the temperature normally used to prepare metal-doped Li0.5Fe2.5O4 by conventional sintering methods. Rietveld structure refinement of the X-ray powder diffraction data shows that the Mg2+ ions substitute for Fe3+ ions on the tetrahedral sites whilst the Li+ ions are located on the octahedral sites. The 57Fe Mössbauer spectrum and magnetic measurements are consistent with this structural model.
AB - Spinel-related magnesium-doped Li0.5Fe2.5O4 has been synthesised by heating magnesium-substituted corundum-related α-Fe2O3 with Li2CO3 at 600°C which is ca. 600°C lower than the temperature normally used to prepare metal-doped Li0.5Fe2.5O4 by conventional sintering methods. Rietveld structure refinement of the X-ray powder diffraction data shows that the Mg2+ ions substitute for Fe3+ ions on the tetrahedral sites whilst the Li+ ions are located on the octahedral sites. The 57Fe Mössbauer spectrum and magnetic measurements are consistent with this structural model.
KW - A. lithium ferrite
KW - A. magnetic properties
KW - C. X-ray diffraction
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U2 - 10.1016/S0038-1098(01)00327-1
DO - 10.1016/S0038-1098(01)00327-1
M3 - Article
AN - SCOPUS:0035477434
SN - 0038-1098
VL - 120
SP - 171
EP - 175
JO - Solid State Communications
JF - Solid State Communications
IS - 4
ER -