Synthesis and characterization of a Ruddlesden-Popper compound: Sr{sub 3}FeMoO{sub 7}

Journal Article · Tue Nov 15 04:00:00 EST 2005 · Journal of Solid State Chemistry

OSTI ID:20784765

Zhaofei, Li ^[1]; Guobao, Li ^[1]; Junliang, Sun ^[1]; Liping, You ^[2]; Loong, Chun-K ^[3]; Yingxia, Wang ^[1]; Fuhui, Liao ^[1]; Jianhua, Lin ^[1]

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1. State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (China)
2. Electron Microscopy Laboratory, College of Physics, Peking University, Beijing 100871 (China)
3. Intense Pulse Neutron Source Division, Argonne National Laboratory, Argonne, IL 60439 (United States)

A powder sample of Sr{sub 3}FeMoO{sub 7} was synthesized by solid-state reaction in reduced atmosphere (5% H{sub 2}/Ar). At room temperature, Sr{sub 3}FeMoO{sub 7} crystallizes in a typical Ruddlesden-Popper (n=2) structure in the space group I4/mmm, a=3.9309(2)A and c=20.435(2)A. The structure refinement indicates that the Fe and Mo ions are randomly distributed in a single B-site with small fraction of B-site and oxygen vacancies. At low temperature, long-range magnetic interaction was observed. The antiferromagnetic magnetic interaction can be described with a large unit cell, a{sub m}=b{sub m}=2a{sub n} and c{sub m}=c{sub n}, in the magnetic space group An'.

• OSTI ID: 20784765
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 11 Vol. 178; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
ANTIFERROMAGNETISM
HYDROGEN
IRON COMPOUNDS
MOLYBDATES
MOLYBDENUM IONS
NEUTRON DIFFRACTION
SPACE GROUPS
STRONTIUM COMPOUNDS
SYNTHESIS
TEMPERATURE RANGE 0273-0400 K
TETRAGONAL LATTICES
VACANCIES