Crystal structure and magnetic properties of double perovskite Mn2FeSbO6

被引：19

作者：

Tyutyunnik, A. P. ^{[1
]}

Bazuev, G. V. ^{[1
]}

Kuznetsov, M. V. ^{[1
]}

Zainulin, Yu. G. ^{[1
]}

机构：

[1] Russian Acad Sci, Ural Branch, Inst Solid State Chem, Ekaterinburg 620990, Gsp, Russia

来源：

MATERIALS RESEARCH BULLETIN | 2011年 / 46卷 / 08期

关键词：

oxides; ceramics; photoelectron spectroscopy; crystal structure; magnetic properties; HIGH-PRESSURE SYNTHESIS; NEUTRON-DIFFRACTION; SR; SB; SPECTROSCOPY; ILMENITE; OXIDE; A=CA; M=NB; BA;

D O I：

10.1016/j.materresbull.2011.04.001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The double perovskite Mn2FeSbO6 has been synthesized under pressure 6 GPa and temperature 1000 degrees C. The crystal structure refinement of Mn2FeSbO6 was carried out with the GSAS program suite using X-ray diffraction data. XRD pattern of Mn2FeSbO6 was indexed with a monoclinic unit cell (space group P2(1)/n) with parameters: a = 5.2431(3) angstrom, b = 5.3935(3) angstrom, c = 7.6358(5) angstrom, beta = 89.693(2)degrees, V= 215.927 angstrom(3), Z = 2. It found that Fe and Sb atoms are completely ordered in 2d and 2c positions of double perovskite structure respectively. According to XPS measurements, manganese in this compound is present as Mn2+, whiles the iron - as Fe3+. Magnetization measurements revealed the presence about 3 mass% of ferromagnetic impurity in the sample. Dependence of AC susceptibility chi '' from temperature showed that magnetic properties compound are determined probably by transformation in antiferromagnetic state below 19.5 K. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1247 / 1251

页数：5

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