Crystal growth of the spin-ladder compound (Ca,La)14Cu24O41 and observation of one-dimensional disorder

被引：38

作者：

Ammerahl, U ^{[1
]}

Revcolevschi, A

机构：

[1] Univ Paris Sud, Lab Chim Solides, F-91405 Orsay, France

[2] Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany

来源：

JOURNAL OF CRYSTAL GROWTH | 1999年 / 197卷 / 04期

关键词：

spin-ladder; (Ca; La)(14)Cu24O41; single crystal; TSFZ method; one-dimensional disorder;

D O I：

10.1016/S0022-0248(98)00969-5

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Centimeter size single crystals of Ca14-xLaxCu24O41 have been successfully grown by the travelling solvent floating zone method using an image furnace, Crystals grown under oxygen pressure of several bar are single phase for 2 less than or equal to x less than or equal to 5. Single crystal X-ray studies on Ca8.4La5.6Cu24O41 and Ca9La5Cu24O41 samples, using precession and Weissenberg methods, show diffraction streaks from the CuO2 chains of the structure which are interpreted as an indication of a one-dimensional initial phase disorder along the a-direction. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：825 / 832

页数：8

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