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- W2384902512 abstract "The structure of V-doped La2-xSrxCuO4+δ system has been studies in this paper.The maximum doping concentration(xc) of V for Cu is 0.15.This xc is much higher than that of the La1.85Sr0.15Cu1-xMxO4+δ(M= Fe,Co,Ni,Zn,Mg,Al and Ga) systems.The results of Rietveld refinement confirm that the V4+ indeed replaces Cu2+.The parameter a increases with the increase of x while c decreases,resulting in a progressive decrease in c/a.A Tetragonal-to-Orthorhombic phase transition occurs at V content of 0.10.The change of structure with V doping has an influence on the infrared spectroscopy.For all the samples,we can observe two absorption peaks around 500 and 350 cm-1 clearly.With V doping,the position and intensity of peak around 500cm-1 keep almost unchanged.While for peak around 350 cm-1,a peak around 327cm-1 appear when x=0.5.Then the appearance of the peak around 400cm-1 may result from the structural transition at x=0.10." @default.
- W2384902512 created "2016-06-24" @default.
- W2384902512 creator A5022146891 @default.
- W2384902512 date "2008-01-01" @default.
- W2384902512 modified "2023-09-23" @default.
- W2384902512 title "THE STUDY ON THE STRUCTURE OF THE V-SUBSTITUTED La_(1.85)Sr_(0.15)Cu_(1-x)V_xO_(4+δ)" @default.
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