Crystal structure in PrBa2Cu4O8 single crystals

被引：5
|
作者：
Yamada, Y [1 ]
Ye, J
Horii, S
Matsushita, A
Kubo, S
机构：
[1] Shimane Univ, Dept Mat Sci, Matsue, Shimane 690, Japan
[2] Natl Res Inst Met, Tsukuba, Ibaraki 305, Japan
[3] Nagoya Univ, Dept Crystalline Mat Sci, Nagoya, Aichi 46401, Japan
来源：
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2001年 / 62卷 / 1-2期
关键词：
crystal growth; crystal structure; electrical properties; oxides;
D O I：
10.1016/S0022-3697(00)00126-8
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We have successfully grown single crystals of PrBa2Cu4O8 (Pr124) by a flux method under high-pressure oxygen gas of 11 arm in MgO crucibles. The structure data of a Pr124 single crystal were taken by using a four-circle diffractometer and the structure was refined by full matrix least-square structure refinements. All z-positional parameters are essentially the same for the single crystal and the polycrystalline Pr124 (Physica C, 302 (1998) 10). The temperature-dependence of resistivity of Pr124 single crystals did not exhibit superconductivity. at least down to 2 K. Resistivity along the b-axis showed a highly conductive behavior, of which the origin is attributed to the double-chain site because of the large anisotropy between the resistivities along the a- and b-axes. (C) 2000 Elsevier Science Ltd. All rights reserved.
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收藏
页码：191 / 194
页数：4
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