Crystal and magnetic structures of RuSr2(Nd,Ce4+)2CU2O10-δ

被引：7
作者：
Kuz'micheva, GM
Kurbakov, AI
Kostyleva, IE
Andreenko, AS
Esaulova, YV
机构：
[1] Lomonosov State Acad Fine Chem Technol, Dept Solid State Phys & Chem, Moscow 119571, Russia
[2] RAS, Petersburg Nucl Phys Inst, Gatchina 188300, Russia
[3] CEA Saclay, CNRS, Leon Brillouin Lab, Gif Sur Yvette, France
[4] Lab High Magnet Fields & Low Temp, PL-53529 Wroclaw, Poland
[5] Vereschagin Inst Phys High Pressure, Troitsk 142092, Russia
[6] Moscow MV Lomonosov State Univ, Moscow 119899, Russia
来源：
PHYSICA B-CONDENSED MATTER | 2004年 / 349卷 / 1-4期
基金：
俄罗斯基础研究基金会;
关键词：
RuSr2(Nd; Ce)Cu2O10-delta; (Ru-1222); synthesis; crystal structure; magnetic structure;
D O I：
10.1016/j.physb.2004.02.015
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The crystal and magnetic structures of RuSr2(Nd,Ce)(2)Cu2O10-delta (RuNd-1222) have been investigated by X-ray at room temperature and neutron powder diffraction at room temperature and T = 2 K. The rotation angle of the RuO6 around the c-axis and the equatorial Ru-O(1) and apical Ru-O(2) bond lengths in these octahedra increase and the tilt angle of the RuO6 decreases upon cooling. In our measurements, we did not find any magnetic ordering of Ru moments in RuSr2(Nd,Ce)(2)Cu2O10-delta phase. The treatment of RuNd-1222 under oxygen pressure leads to the formation of cubic perovskite phase. (C) 2004 Elsevier B.V. All rights reserved.
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页码：149 / 155
页数：7
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