Physical properties study of Nd2−xGdxFe17 intermetallic alloys

Investigation of (R1−xR′x)2(Fe,Co)17 powders by Mössbauer spectrometry

“…We found that the calculated values of the magnetization are very close to the measured saturated magnetization at room temperature [12][13][14][15][16][17] when:…”

“…5. As for the (R 1−x R x ) 2 Fe 17 series, a weak central paramagnetic component was introduced to account for extra absorption at the centre of the Nd 0.5 Gd 1.5 Fe 16 Co, NdGdFe 16 Co, Nd 1.5 Gd 0.5 Fe 16 Co, Nd 2 Fe 16 Co spectra. Its relative intensity does not exceed 3.8%.…”

“…In the present paper, the investigations are made by varying the concentration of the rare earths in (R 1−x R x ) 2 Fe 17 and (R 1−x R x ) 2 Fe 16 Co alloys. This study follows previous research on the intrinsic magnetic properties (magnetization and Curie temperature) of the same alloys [12][13][14][15][16][17]. The local information on the Fe sites obtained by Mössbauer spectrometry is compared with previous magnetic data.…”

Magneto-caloric effect in the pseudo-binary intermetallic YPrFe17 compound

“…Thereafter, the value of T C has been taken as the minimum of the dM/dT vs. T curve, which is a commonly adopted criterion [13,24,29]. In this way, T C = 291 ± 5 K for YPrFe 17 , which is in between those reported values for Pr 2 The isothermal magnetic entropy change, |∆S M | has been calculated from the set of isothermal magnetization vs. applied magnetic field, M(H), curves depicted in Fig. 2 and following the procedure explained in the previous section.…”

“…in the form R 2-x R' x Fe 17 ) [17], or by partial substitution of Fe other 3d-atom [18]. The crystal structure of the binary intermetallic R 2 Fe 17 compounds can be either of Th 2 Zn 17 -type (rhombohedral R3m space group) for light rare-earths, or Th 2 Ni 17 -type (hexagonal P 6 3 mmc space group) for heavy rare-earths [19,20].…”