Neutron powder diffraction studies of NdSrNi1-xCuxO4-delta, 0x1, and magnetic properties

Compounds from the solid solution NdSrNi1-xCuxO4-delta, 0x1, have been prepared using conventional solid state methods and were characterized by X-ray powder diffraction, thermo-gravimetric analysis and magnetic susceptibility measurements. The samples adopt the K2NiF4-type structure. For x=0.2 and...

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Bibliographic Details
Published in:Solid state sciences 2006-02, Vol.8 (2), p.142-148
Main Authors: Chaker, Hanen, Roisnel, T, Cador, O, Amami, M, Hassen, R Ben
Format: Article
Language:English
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Summary:Compounds from the solid solution NdSrNi1-xCuxO4-delta, 0x1, have been prepared using conventional solid state methods and were characterized by X-ray powder diffraction, thermo-gravimetric analysis and magnetic susceptibility measurements. The samples adopt the K2NiF4-type structure. For x=0.2 and x=0.6, neutron diffraction measurements were performed and bond-valence sums (BVSs) were calculated from the Brown bond valence calculation theory. Magnetic susceptibility data for all the compositions follow Curie-Weiss behavior in the temperature range 100-300 K with no evidence of long range magnetic ordering down to 2 K. The effect of Cu2+ incorporation on the magnetic properties of NdSrNi1-xCuxO4-delta, 0x1, is discussed.
ISSN:1293-2558
DOI:10.1016/j.solidstatesciences.2005.10.009