Influence of Si and Co substitutions on magnetoelastic properties of R2Fe17 (R=Y, Er and Tm) intermetallic compounds

Influence of low Co substitution on magnetoelastic properties of HoFe11Ti intermetallic compound

“…The results of o s indicate that the volume dependence of the magnetic interaction weakens with Co substitution. A similar trend has also been observed in Er 2 Fe 14 À x Co x B and Tm 2 Fe 14 À x Co x Si 2 compounds [18,26].…”

Magnetic properties of Tm2Fe17-xSix alloys

“…A clear difference in the shape of the M(T) plot was observed for Tm 2 Fe 14 Si 2 [16], but that experiment was carried out on an aligned powder. As mentioned above, the Curie point and T SR of the pristine 2:17 compound determined in the present work are higher than reported up to now [2,6,17], however, both T C and T SR of the not numerous ternaries reported earlier are of the same order of magnitude [2,16,17] as our results. In some of the investigated alloys additional anomalies were observed in the thermomagnetic curves, but without neutron diffraction or Mössbauer effect experiments one cannot give a reasonable explanation.…”

“…Up to now, according to our best knowledge, hexagonal ternaries with Si have been investigated in a broader composition range for R = Y [7][8][9][10][11][12], Sm [10], Tb [13][14][15], Ho [15], Lu, and U [11]. From the system Tm-Fe-Si only selected compositions have been examined [2,16,17]. Moreover, the composition of these alloys did not correspond exactly to the 2:17 stoichiometry.…”

Thermal expansion anomaly and magnetostriction of Nd2Fe14Si3 intermetallic compound

“…However, effects of Si substitution on magnetoelastic properties such as thermal expansion and magnetostriction have been less considered until now [18][19][20]. Following our investigation on magnetoelastic properties of R 2 Fe 17Àx Si x (R = Y, Er and Tm) compounds [21], we report the thermal expansion and magnetostriction of R 2 Fe 14 Si 3 (R = Ce and Nd) and then estimate the contribution of Nd and Fe sublattice to magnetoelastic properties.…”

“…The bond lengths of 6c-6c, 9d-18f, and 9d-18h sites for Ce 2 Fe 17 (circles), Ce 2 Fe 14 Si 3 (squares) and Nd 2 Fe 15 Si 2 (triangles) compounds[21,25]. Field dependence of the anisotropic magnetostriction of Nd 2 Fe 14 Si 3 compound at different temperatures.…”