Structure and magnetic properties of Er3(Fe, V)29 alloys

Structure and magnetic properties of Er3Fe29−xCrx compounds

“…Compared with the results observed in YFe 9.16 V 0.50 (disordered CaCu 5 -type structure) [12] and Er 3 Fe 28 V [11], in which the compounds were annealed at temperatures lower than 1273 K, our results indicate that the disordered phase can also be obtained at rather higher annealing temperatures.…”

“…[4][5][6][7][8][9][10]. It is well known that the Nd 3 (Fe,Ti) 29 -type structure is a mixture of the tetragonal ThMn 12 (1:12) and the rhombohedral Th 2 Zn 17 (2:17R) structures [3], the latter being formed by the presence of light rare earth. Considering that heavy rare earth elements can also form a hexagonal Th 2 Ni 17 structure (2:17H), Cadogan et al predicted the existence of a new intermediate phase which was formed by 2:17H and 1:12 structural segments for R being a heavy rare earth element [6].…”

Structure and magnetic properties of Er3Fe29 − xNbx

“…XRD analysis in combination with the thermomagnetic curve measurement indicated that the Er 3 Fe 29−x Nb x (0 x 1.5) compounds crystallize in either the disordered or the ordered Th 2 Ni 17 -type structure, except for small amounts of α-Fe and the ThMn 12 (1 : 12) phases in some samples, depending on the Nb content and annealing temperature. As an example, figure 1 [12] and Gjoka et al [13] in the Er 3 (Fe, V) 29 compounds. Compared with figure 1(a), the (2 1 2) reflections in figure 1(b) have disappeared and some reflections in the high angles show a different intensity.…”

“…Much effort has gone into finding new compounds with the predicted structure, but these attempts have been unsuccessful up to now. On the other hand, Psycharis et al [12] and Gjoka et al [13] have recently found a disordered Th 2 Ni 17 -type structure in the Er 3 (Fe, V) 29 compound when the annealing temperature was below 1273 K.…”

“…These outstanding intrinsic magnetic properties make them potential candidates for permanent magnet applications. In addition, an in-depth investigation of the structure and magnetic properties of the R 3 (Fe, T) 29 compounds has been carried out [6,[11][12][13][14].…”