Synthesis, crystal structure, and magnetic order of the layered iron oxycarbonate Sr4Fe2O6CO3

被引：28

作者：

Yamaura, K ^{[1
]}

Huang, Q

Lynn, JW

Erwin, RW

Cava, RJ

机构：

[1] Princeton Univ, Dept Chem, Princeton, NJ 08540 USA

[2] Princeton Univ, Princeton Mat Inst, Princeton, NJ 08540 USA

[3] NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA

[4] Univ Maryland, Dept Mat & Nucl Engn, College Pk, MD 20742 USA

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2000年 / 152卷 / 02期

关键词：

layered oxycarbonates; Ruddlesden-Popper phases; Sr4Fe2O6CO3; powder neutron diffraction; neutron scattering;

D O I：

10.1006/jssc.2000.8665

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The iron oxycarbonate Sr4Fe2O6CO3 is reported. The crystal structure and magnetic order were determined by magnetic susceptibility, powder neutron diffraction, and neutron scattering studies. The structure is tetragonal between 10 and 400 K (I4/mmm, a = 3.88907(4) Angstrom and c = 27.9818(4) Angstrom at 295 K), and is related to a 4:3 type Ruddlesden-Popper phase with CO3 plaques in place of the middle layer of transition metal octahedra. The three-dimensional magnetic ordering transition temperature is 361 K, The magnetic order is antiferromagnetic within the FeO2/SrO/SrO/FeO2 blocks and ferromagnetic between blocks. (C) 2000 Academic Press.

引用

页码：374 / 380

页数：7

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