Structural investigation of Ca2MnO4 by neutron powder diffraction and electron microscopy

被引：30
作者：
Autret, C
Martin, C
Hervieu, M
Retoux, R
Raveau, B
André, G
Bourée, F
机构：
[1] CNRS, ISMRA, Lab CRISMAT, UMR 6508, F-14050 Caen 4, France
[2] CNRS, CEA Saclay, Lab Leon Brillouin, F-91191 Gif Sur Yvette, France
来源：
JOURNAL OF SOLID STATE CHEMISTRY | 2004年 / 177卷 / 06期
关键词：
Ruddlesden-Popper phases; neutron diffraction; electron microscopy;
D O I：
10.1016/j.jssc.2004.02.012
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The first member of the Ruddlesden-Popper family. Ca2MnO4, has been revisited. Coexistence of two structures has been shown from electron microscopy at room temperature and neutron diffraction data have evidenced two antiferromagnetic structures at low temperature. Two forms, with an orthorhombic Aba2 (aapproximate tobapproximate toa(p) root2 and capproximate to12 Angstrom) and a tetragonal I4(1)/cad (aapproximate toa(p)root2 and capproximate to24 Angstrom) symmetries, were found to coexist coherently within the same matrix. (C) 2004 Elsevier Inc. All rights reserved.
引用
收藏
页码：2044 / 2052
页数：9
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