Physics – Condensed Matter – Materials Science
Scientific paper
2006-12-30
Physical Review B 76 (2007) 054421
Physics
Condensed Matter
Materials Science
8 pages, figures, submitted for publication in Phys. Rev. B
Scientific paper
10.1103/PhysRevB.76.054421
X-ray diffraction experiments were performed on polycrystalline and single-crystal specimens of Ce$_{2}$Fe$_{17}$ at temperatures between 10 K and 300 K. Below $T_{\mathrm{t}}$ = 118$\pm$2 K, additional weak superstructure reflections were observed in the antiferromagnetically ordered state. The superstructure can be described by a doubling of the chemical unit cell along the $\mathbf{c}$ direction in hexagonal notation with the same space group $R \bar{3} m$ as the room-temperature structure. The additional antiferromagnetic satellite reflections observed in earlier neutron diffraction experiments can be conclusively related to the appearance of this superstructure.
Canfield Paul. C.
Chang Sandy
Goldman Alan I.
Janssen Y.
Kim Won-Jang
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