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The magnetic structure of TbNiSiD1.78 |
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| Authors: | H W Brinks V A Yartys B C Hauback H Fjellvg B Ouladdiaf |
| Affiliation: | a Department of Physics, Institute for Energy Technology, P.O. Box 40, N-2027 Kjeller, Norway b University of Oslo, P.O. Box 1033, N-0315 Blindern, Oslo, Norway c Institute Laue–Langevin, F-38042 Grenoble Cedex 9, France |
| Abstract: | TbNiSiD1.78 has been studied by powder neutron diffraction below 100 K. The compound takes the hexagonal room temperature structure at 100 and 50 K (P63/mmc). At 2 K, below the antiferromagnetic ordering temperature of 10 K, there is a small orthorhombic distortion of the lattice. The refined unit-cell dimensions at 2 K (space group Pnma) are a=7.9505(2), b=4.02502(14), c=6.9823(2) Å. The magnetic moments of Tb are 8.71(6) μB, and are ordered antiferromagnetically along a. |
| Keywords: | Rare earth compounds Transition metal compounds Hydrogen absorbing materials Magnetically ordered materials Neutron diffraction |
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