Journal of alloys and compounds, 2007-09, Vol.442 (1-2), p.149-151
2007
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Details
- Autor(en) / Beteiligte
- Titel
- The new ternary silicides Re6Co1.67Si3 (Re=Ce, Nd, Gd, Tb, Dy) investigated by X-ray diffraction and magnetization measurements
- Ist Teil von
- Journal of alloys and compounds, 2007-09, Vol.442 (1-2), p.149-151
- Ort / Verlag
- Lausanne: Elsevier
- Erscheinungsjahr
- 2007
- Quelle
- Alma/SFX Local Collection
- Beschreibungen/Notizen
- These compounds crystallize in the hexagonal structure (space group P63/m) related to the Gd6Co1.67Si3-type. The magnetization measurements reveal that: (i) the cerium exhibits a trivalent state in Ce6Co1.67Si3 but no magnetic ordering is evidenced above 1.8K; (ii) on the contrary, two ferro(ferri)magnetic transitions are detected for Nd6Co1.67Si3 (84 and 35K) and Tb6Co1.67Si3 (183 and 39K); in both case, a remanence phenomena appears for temperatures below the higher magnetic transition; (iii) similar behavior does not exist for Gd6Co1.67Si3 which shows only one ferromagnetic transition below TC=294K. The occurrence of a complex magnetic phase diagram for Nd6Co1.67Si3 and Tb6Co1.67Si3 can be correlated to the existence of two crystallographic sites for rare earth atoms in this new family of compounds.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 0925-8388eISSN: 1873-4669DOI: 10.1016/j.jallcom.2006.06.111Titel-ID: cdi_hal_primary_oai_HAL_hal_00159492v1
- Format
- –
- Schlagworte
- Chemical Sciences, Condensed matter: electronic structure, electrical, magnetic, and optical properties, Exact sciences and technology, Magnetic properties and materials, Material chemistry, Physics, Spin arrangements in magnetically ordered materials (including neutron and spin-polarized electron studies, synchrotron-source x-ray scattering, etc.)