Rietveld原理[共111页]

陈小龙中国科学院物理研究所2006.10杭州LecturenotesRietveld方法原理IsostructuralCompoundsNd2CuO4Gd2CuO4a=0.39419nma=3.8938nmc=1.21627nmc=11.8810nmZNd=0.353ZGd=0.349Nd(Gd)XRDpatternsofSolidsolutionNaSrXRDpatternsofSolidsolutionNaSr4-x4-xBaBaxxBB33OO99(0≤x≤4)(0≤x≤4):FirstcubicborateonlywithBOFirstcubicborateonlywithBO33Cubicboratesareestimatedbelow1%.L.Wu,X.L.Chen,et.al.2004PhasetransitionofBaT...