Eu doping effects on structural and magnetic properties of (Sr{sub 2-x}Eu{sub x})FeMoO{sub 6} compounds

Journal Article · Fri Oct 15 04:00:00 EDT 2010 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2010.08.013· OSTI ID:21421491

Zhang, Q ^[1]; Xiao, Y G ^[2]; Xu, Z F ^[1]; Liu, G Y; Li, J B ^[2]

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1. Department of Mathematics and Physics, Shandong Jiaotong University, Jinan 250023 (China)
2. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China)

Double perovskite compounds (Sr{sub 2-x}Eu{sub x})FeMoO{sub 6} (0{<=}x{<=}0.3) were prepared by solid-state reaction at high temperature. Crystal structure, magnetic and transport properties of the compounds were investigated. The crystal structure of the compounds changes from an I4/m lattice to an Fm3-bar m lattice around x=0.1. The unit-cell volume decreases with the doping level in both the I4/m lattice and the Fm3-bar m lattice. The resistivity of the compounds shows a metal-semiconductor transition, and the transition temperature T{sub M-S} increases with the doping level. However, Curie temperature (T{sub C}) of the compounds exhibits a weak dependence on the doping level. The saturation magnetization (M{sub S}) at 100 K varies almost linearly with the anti-site defect concentration and agrees well with the simple FIM model. In contrast to the Ce-, Pr-, Nd- and Sm-doped Sr{sub 2}FeMoO{sub 6}, the difference of M{sub S} of (Sr{sub 2-x}Eu{sub x})FeMoO{sub 6} between 5 and 100 K indicates that the moment of Eu{sup 3+} is antiparellel to that of Fe{sup 3+} at low temperature. - Graphical abstract: Temperature dependence of saturation magnetization of (Sr{sub 1.8}Eu{sub 0.2})FeMoO{sub 6} (filled circle) and (Sr{sub 1.8}Nd{sub 0.2})FeMoO{sub 6} (open circle).

• OSTI ID: 21421491
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 10 Vol. 183; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALKALINE EARTH METAL COMPOUNDS
CHARGED PARTICLES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CUBIC LATTICES
CURIE POINT
DOPED MATERIALS
ELEMENTS
EUROPIUM COMPOUNDS
EUROPIUM IONS
IONS
IRON COMPOUNDS
IRON IONS
MAGNETIC PROPERTIES
MAGNETIZATION
MATERIALS
METALS
MINERALS
MOLYBDATES
MOLYBDENUM COMPOUNDS
OXIDE MINERALS
OXYGEN COMPOUNDS
PEROVSKITE
PEROVSKITES
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
REFRACTORY METAL COMPOUNDS
SEMICONDUCTOR MATERIALS
STRONTIUM COMPOUNDS
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE
TEMPERATURE RANGE 0000-0013 K
TEMPERATURE RANGE 0013-0065 K
TEMPERATURE RANGE 0065-0273 K
TETRAGONAL LATTICES
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE