Synthesis, structure and magnetic properties of Sr2Fe1-xGaxMoO6 (0 ≤ x ≤ 0.6) double perovskites

被引：3

作者：

Azad, Abul K. ^{[1
]}

Khan, Abdullah ^{[2
]}

Eriksson, Sten-G ^{[3
]}

Irvine, John T. S. ^{[1
]}

机构：

[1] Univ St Andrews, Sch Chem, St Andrews KY16 9ST, Fife, Scotland

[2] Univ Balochistan, Dept Chem, Balochistan, Pakistan

[3] Chalmers, Dept Environm Inorgan Chem, SE-41296 Gothenburg, Sweden

来源：

MATERIALS RESEARCH BULLETIN | 2009年 / 44卷 / 12期

基金：

英国工程与自然科学研究理事会;

关键词：

Oxides; Chemical synthesis; Neutron diffraction; Crystal structure; Magnetic properties; ROOM-TEMPERATURE; CURIE-TEMPERATURE; MAGNETORESISTANCE; SR2FEMOO6; BA;

D O I：

10.1016/j.materresbull.2009.08.012

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Polycrystalline Sr2Fe1-xGaxMoO6 (0 <= x <= 0.6) materials have been synthesized by solid state reaction method and studied by neutron powder diffraction (NPD) and magnetization measurements. Rietveld analysis of the temperature dependent NPD data shows that the compounds crystallize in the tetragonal symmetry in the space group 14/m. The anti-site (AS) defects concentration increases with Ga doping, giving rise to highly B-site disordered materials. Ga doping at the Fe-site decreases the cell volume. The evolution of bond lengths and the cation oxidation states was determined from the Rietveld refinement data. The saturation magnetization and Curie temperature decreased with the increasing Ga content in the samples. Low temperature neutron diffraction data analysis and magnetization measurements confirm the magnetic interaction as ferrimagnetic in the sample. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：2181 / 2185

页数：5

共 27 条

[1]

Alonso JA, 2000, CHEM MATER, V12, P161, DOI 10.1021/cm990512g

[2] Electron doping effect on structural and magnetic phase transitions in Sr2-xNdxFeMoO6 double perovskites [J].

Azad, A. K. ;

Enksson, S. -G. ;

Khan, Abdullah ;

Eriksson, A. ;

Tseggai, M. .

JOURNAL OF SOLID STATE CHEMISTRY, 2006, 179 (05) :1303-1311

[3] Magnetic properties of the double perovskites A2FeMoO6;: A = Ca, Sr, Ba [J].

Borges, RP ;

Thomas, RM ;

Cullinan, C ;

Coey, JMD ;

Suryanarayanan, R ;

Ben-Dor, L ;

Pinsard-Gaudart, L ;

Revcolevschi, A .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1999, 11 (40) :L445-L450

[4] Effect of chemical substitution on the electronic properties of highly aligned thin films of Sr2-xAxFeMoO6 (A=Ca, Ba, La;: x=0, 0.1) [J].

Branford, WR ;

Clowes, SK ;

Bugoslavsky, YV ;

Miyoshi, Y ;

Cohen, LF ;

Berenov, AV ;

MacManus-Driscoll, JL ;

Rager, J ;

Roy, SB .

JOURNAL OF APPLIED PHYSICS, 2003, 94 (07) :4714-4716

[5] Structural phase transition and the electronic and magnetic properties of Sr2FeMoO6 [J].

Chmaissem, O ;

Kruk, R ;

Dabrowski, B ;

Brown, DE ;

Xiong, X ;

Kolesnik, S ;

Jorgensen, JD ;

Kimball, CW .

PHYSICAL REVIEW B, 2000, 62 (21) :14197-14206

[6] CLASSIFICATION OF TILTED OCTAHEDRA IN PEROVSKITES [J].

GLAZER, AM .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1972, B 28 (NOV15) :3384-&

[7] Effect of cation disorder on the magnetic properties of Sr2Fe1-xGaxReO6 (0<x<0.7) double perovskites [J].

Jung, Alexandra ;

Bonn, Irene ;

Ksenofontov, Vadim ;

Panthoefer, Martin ;

Reiman, Sergey ;

Felser, Claudia ;

Tremel, Wolfgang .

PHYSICAL REVIEW B, 2007, 75 (18)

[8] Metallic ordered double-perovskite Sr2CrReO6 with maximal Curie temperature of 635 K [J].

Kato, H ;

Okuda, T ;

Okimoto, Y ;

Tomioka, Y ;

Takenoya, Y ;

Ohkubo, A ;

Kawasaki, M ;

Tokura, Y .

APPLIED PHYSICS LETTERS, 2002, 81 (02) :328-330

[9] Large room-temperature intergrain magnetoresistance in double perovskite SrFe1-x(Mo or Re)xO3 [J].

Kim, TH ;

Uehara, M ;

Cheong, SW ;

Lee, S .

APPLIED PHYSICS LETTERS, 1999, 74 (12) :1737-1739

[10] Intergrain tunneling magnetoresistance in polycrystals of the ordered double perovskite Sr2FeReO6 [J].

Kobayashi, KI ;

Kimura, T ;

Tomioka, Y ;

Sawada, H ;

Terakura, K ;

Tokura, Y .

PHYSICAL REVIEW B, 1999, 59 (17) :11159-11162

← 1 2 3 →