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Crystal structure and magnetic properties of SmCo5.85Si0.90 compound.
- Source :
- Applied Physics Letters; 4/19/2004, Vol. 84 Issue 16, p3094-3096, 3p, 1 Chart, 4 Graphs
- Publication Year :
- 2004
-
Abstract
- The crystal structure and magnetic properties of SmCo<subscript>7-x</subscript>Si<subscript>x</subscript> (x=0.1–0.9) compounds were studied by means of x-ray powder diffraction and magnetic measurements. Rietveld refinement of x-ray powder diffraction pattern shows that the as-cast compound SmCo<subscript>7-x</subscript>Si<subscript>x</subscript> with x=0.9 crystallizes in the TbCu<subscript>7</subscript>-type structure with the space group P6/mmm, and the doping element Si has a distinct preference to occupy the 3g site. According to the refinement result, the composition of the compound is derived as SmCo<subscript>5.85</subscript>Si<subscript>0.90</subscript>. The compound SmCo<subscript>5.85</subscript>Si<subscript>0.90</subscript> exhibits ferromagnetic order with the Curie temperature of about 717 K and a saturation moment of about 6.58±0.05 μ<subscript>B</subscript>/f.u. The SmCo<subscript>5.85</subscript>Si<subscript>0.90</subscript> compound shows a strong uniaxial magnetocrystalline anisotropy, and an anomalous increase of magnetization at low temperature is observed in an external field applied perpendicular to the easy direction of magnetization. © 2004 American Institute of Physics. [ABSTRACT FROM AUTHOR]
- Subjects :
- X-rays
MAGNETIC properties
MAGNETIZATION
TEMPERATURE
ANISOTROPY
ATMOSPHERE
Subjects
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 84
- Issue :
- 16
- Database :
- Complementary Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 12817077
- Full Text :
- https://doi.org/10.1063/1.1712026