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Synthesis and characterization of a Ruddlesden-Popper compound: Sr3FeMoO7 |
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| Authors: | Zhaofei Li Junliang Sun Chun-K. Loong Fuhui Liao |
| Affiliation: | a State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China b Electron Microscopy Laboratory, College of Physics, Peking University, Beijing 100871, PR China c Intense Pulse Neutron Source Division, Argonne National Laboratory, Argonne, IL 60439, USA |
| Abstract: | A powder sample of Sr3FeMoO7 was synthesized by solid-state reaction in reduced atmosphere (5% H2/Ar). At room temperature, Sr3FeMoO7 crystallizes in a typical Ruddlesden-Popper (n=2) structure in the space group I4/mmm,  and  . 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,  and cm=cn, in the magnetic space group An′. |
| Keywords: | Sr3FeMoO7 Magnetic structure Ruddlesden-Popper phase Neutron diffraction |
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