Effect of Zn doping on crystal growth and structure of the pseudo-ladder compound CaCu₂O₃

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• 作者：Sekar ; C. ; Krabbes ; G. ; Teresiak ; A.
• 关键词：74.72.Jt ; 81.10.Dn ; 74.62.Bf ; 61.12.Ld ; A1. Low dimensional structures ; A2. Floating zone technique ; B1. CaCu₂O₃ ; B2. Spin ladders
• 刊名：Journal of Crystal Growth
• 出版年：2005
• 期刊代码：49_00220248
• 类别：ch
• 出版时间：January 3, 2005
• 卷：273
• 期：3-4
• 页码：403-411
• 文件大小：437 K

摘要

Large single crystals of Ca(Cu_1−xZn_x)₂O₃ ( Formula Not Shown, 0.035, 0.07, 0.14) have been grown by the traveling solvent floating zone (TSFZ) method. Appropriate growth atmosphere (5 bar oxygen) and CuO-poor starting composition to form solvent are found to be crucially important for successful crystal growth. Lower Zn content ( Formula Not Shown, 0.07) promotes the phase formation and stability of the melt zone during the growth. Grown crystals were characterized by polarized optical microscopy, energy-dispersive analysis of X-rays (EDAX), thermogravimetry-differential thermal analysis (TG-DTA), Laue back-scattering photography, and powder X-ray diffraction (XRD) methods.