Crystal growth of spin-ladder compound La₂Cu₂O₅ and ladder-like compound CaCu₂O₃

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• 作者：Sekar ; C. ; Ruck ; K. ; Krabbes ; G. ; Teresiak ; A. ; Watanabe ; T.
• 关键词：74.72.Dn ; 74.72.Jt ; 81.10.Dn ; Spin ladders ; La₂Cu₂O₅ ; CaCu₂O₃ ; Crystal growth
• 刊名：Physica C
• 出版年：2002
• 期刊代码：80_09214534
• 类别：ms
• 出版时间：October 1, 2002
• 卷：378-381
• 期：Part 1
• 页码：678-682
• 文件大小：242 K

摘要

We report single crystal growth of the spin-ladder compound La₂Cu₂O₅ (4-leg) and spin-ladder-like compound CaCu₂O₃ (2-leg). Crystal growth of La₂Cu₂O₅ has been carried out by the self-flux method using a modified slow cooling technique. Single crystals of CaCu₂O₃ have been grown by the travelling solvent floating zone method under oxygen pressure (5 bar). An optimum solvent for growth of CaCu₂O₃ was found to be Ca_0.8Sr_0.2Cu₂O₃. The grown crystals were characterized for their purity and structure by using optical polarized microscope, energy dispersive X-ray spectroscopy, and X-ray diffraction methods.