Effect of different element doping on the structure and magnetic properties of composite crystal Sr sub(14)(Cu sub(1-x)M sub(x)) sub(24)O sub(41)(M=Zn, Ni, Co)

The Zn[sup 2+], Ni[sup 2+] and Co[sup 3+] doped Sr[sub 14](Cu[sub 1-x]M[subx])[sub 24]O[sub 41] composite crystals were synthesized by a standard solid state reaction method. The temperature dependence of magnetic properties was measured for every sample. The Curie coefficient Weiss temperature, num...

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Published inPhysica. B, Condensed matter Vol. 441; pp. 6 - 11
Main Authors Wang, Jun, Zou, Huamin, Li, Yang, Xie, Hui, Hu, Ni, Wang, Lili, Shi, Jing
Format Journal Article
LanguageEnglish
Published 15.05.2014
Subjects
Chains
Condensed matter
Dimers
Doping
Fittings
Magnetic properties
Nickel
Temperature dependence
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Summary:The Zn[sup 2+], Ni[sup 2+] and Co[sup 3+] doped Sr[sub 14](Cu[sub 1-x]M[subx])[sub 24]O[sub 41] composite crystals were synthesized by a standard solid state reaction method. The temperature dependence of magnetic properties was measured for every sample. The Curie coefficient Weiss temperature, number of dimers in CuO[sub 2] chain per formula unit (f.u.) and dimer coupling constant are obtained by fitting the temperature dependence of the magnetic susceptibility. The phenomenon that the diffraction spots of CuO[sub 2] chain extend to streaks in EDP appears as evidence that the magnetic sequence in the CuO[sub 2] chain is destroyed by doping of Zn, Ni, Co.
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ISSN:0921-4526
DOI:10.1016/j.physb.2014.01.045