| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1800116 | Journal of Magnetism and Magnetic Materials | 2013 | 7 Pages |
Synthesis of Ho(Mn1−xFex)2Ho(Mn1−xFex)2 and Ho(Co1−xNix)2Ho(Co1−xNix)2 intermetallic compounds, studies of their crystal structure and electrical resistivity were carried out.A pure cubic Fd3m, C15, MgCu2MgCu2-type Laves phase was evidenced by X-ray measurements for all compounds. The unit cell parameter decreases nonlinearly with composition parameter x (or the average number n of 3d electrons per transition metal atom).Electrical resistivities for Ho(Mn1−xFex)2Ho(Mn1−xFex)2 and Ho(Co1−xNix)2Ho(Co1−xNix)2 compounds were measured in a wide temperature range (13–1000 K) and, for most of them, the component resistivities: residual, phonon and magnetic were separated. The parameters characterising the dependence of resistivity on temperature and composition, including the Debye temperature, were determined. The differential of the magnetic part of electrical resistivity against temperature was used to estimate Curie temperatures. The Curie temperature grows with an increasing amount of iron for Ho(Mn1−xFex)2Ho(Mn1−xFex)2 compounds, and for Ho(Co1−xNix)2Ho(Co1−xNix)2 it reduces with an increasing amount of nickel.All results are summarized together with those for the Ho(Fe1−xCox)2Ho(Fe1−xCox)2 series, which have been presented previously.
► Synthesis of Ho(Mn1−xFex)2Ho(Mn1−xFex)2 and Ho(Co1−xNix)2Ho(Co1−xNix)2 intermetallics was performed. ► Electrical resistivities for Ho(Mn1−xFex)2Ho(Mn1−xFex)2 and Ho(Co1−xNix)2Ho(Co1−xNix)2 were measured. ► The Curie and Debye temperatures were determined. ► All results are summarized together with those for the Ho(Fe1−xCox)2Ho(Fe1−xCox)2 series.
