Effects of substitution of Dy for Nd on the structural and magnetic properties of Nd3-xDyxFe27.5Mo1.5 (0.3≤x≤1.8)

A series of Nd3-xDyxFe27.5Mo1.5 (0.3- < x, < 1.8) intermetallic compounds were prepared. Their structural properties have been investigated using powder X-ray diffraction and their magnetic properties have been studied by a vibrating sample magnetometer (VSM). Rietveld refinement of the X-ray...

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Veröffentlicht in:	Physica. B, Condensed matter Condensed matter, 2005-10, Vol.367 (1-4), p.275-281
Hauptverfasser:	HAN, S. B, LV, J. Y, LIU, X. F, PENG, J, LI, X. J, CHEN, D. F, XUE, Y. J, LI, J. H, HU, Z. B
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Domain effects, magnetization curves, and hysteresis Exact sciences and technology Magnetic properties and materials Magnetization curves, magnetization reversal, hysteresis, barkhausen and related effects Permanent magnets Physics Studies of specific magnetic materials
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Zusammenfassung:	A series of Nd3-xDyxFe27.5Mo1.5 (0.3- < x, < 1.8) intermetallic compounds were prepared. Their structural properties have been investigated using powder X-ray diffraction and their magnetic properties have been studied by a vibrating sample magnetometer (VSM). Rietveld refinement of the X-ray patterns shows that the lattice constants a, b, c and the unit cell volume V are decreased by the substitution of Dy for Nd. Mo prefers to occupy 4i1, 4i2 and 4 g sites due to the size and thermodynamic effects. The Curie temperatures Tc of the 3:29 phases in all samples obtained by TMA measurements do not show remarkable changes. However, the saturation magnetizations of the samples decrease monotonically with more Nd replaced by Dy in compounds.
ISSN:	0921-4526 1873-2135
DOI:	10.1016/j.physb.2005.06.028