PREPARATION AND CRYSTAL-STRUCTURE OF ND2SR3CU3O6(BO3)2

被引：7
|
作者：
AMAMOTO, Y [1 ]
YAMANE, H [1 ]
OKU, T [1 ]
MIYAZAKI, Y [1 ]
HIRAI, T [1 ]
机构：
[1] KYOTO UNIV, FAC ENGN, DEPT MET, AOBA KU, KYOTO 606, JAPAN
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1994年 / 227卷 / 3-4期
关键词：
D O I：
10.1016/0921-4534(94)90078-7
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A new oxyborate Nd2Sr3Cu3O6 (BO3) 2 was prepared at 1030-degrees-C and 1 atm of 02, and examined by means of electron diffraction, high-resolution transmission electron microscopy (HRTEM), Rietveld analysis for the X-ray diffraction data and infrared spectroscopy. This compound crystallized in the tetragonal system (space group P4/nnc) with a = 7.7671 (1) and c = 35.8284 angstrom. The crystal structure of Nd2Sr3Cu3O6(BO3)2 was explained as an alternative stacking of (BO3)(Sr,Nd)2CuO2 (B-1201 unit) layers and (BO3)Sr2NdCu2O4 (B-1212 unit) layers. The BO3 groups, having a triangular planar structure, were ordered between the CuO2 sheets.
引用
收藏
页码：245 / 253
页数：9
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