Anion ordering, magnetic structure and properties of the vacancy ordered perovskite Ba3Fe3O7F

被引：13

作者：

Clemens, Oliver ^{[1
,2
,3
]}

Reitz, Christian ^{[2
]}

Witte, Ralf ^{[2
]}

Kruk, Robert ^{[2
]}

Smith, Ronald I. ^{[4
]}

机构：

[1] Tech Univ Darmstadt, Joint Res Lab Nanomat, Jovanka Bontschits Str 2, D-64287 Darmstadt, Germany

[2] Karlsruher Inst Technol, Inst Nanotechnol, Hermann von Helmholtz Pl 1, D-76344 Eggenstein Leopoldshafen, Germany

[3] Univ Birmingham, Sch Chem, Birmingham B15 2TT, W Midlands, England

[4] Rutherford Appleton Lab, ISIS Facil, Harwell Campus, Didcot OX11 0QX, Oxon, England

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2016年 / 243卷

关键词：

Anion ordering; Vacancy ordering; Perovskites; Oxyfluorides; Magnetic structure; BILBAO CRYSTALLOGRAPHIC SERVER; OXIDE FLUORIDE; OXYFLUORIDE; BEHAVIOR; FLUORINATION; MOSSBAUER; INSERTION; PHASES;

D O I：

10.1016/j.jssc.2016.07.033

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

This article describes a detailed investigation of the crystallographic and magnetic structure of perovskite type Ba3Fe3O7F by a combined analysis of X-ray and neutron powder diffraction data. Complete ordering of vacancies within the perovskite lattice could be confirmed. In addition, the structure of the anion sublattice was studied by means of the valence bond method, which suggested partial ordering of the fluoride ions on two of the six crystallographically different anion sites. Moreover, the compound was found to show G-type antiferromagnetic ordering of Fe moments, in agreement with magnetometric measurements as well as previously recorded Fe-57 Mossbauer spectroscopy data. (C) 2016 Elsevier Inc. All rights reserved.

引用

页码：31 / 37

页数：7

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