Magnetic properties of phases with Au4Al-type structure in the Cr–{Cu, Fe, 
Pd}–Ni–Si quaternary systems

Martyniak, Romana-Iryna; Muts, Nataliya; Bobnar, Matej; Akselrud, Lev; Gladyshevskii, Roman

doi:10.1016/j.jssc.2022.123511

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Magnetic properties of phases with Au4Al-type structure in the Cr–{Cu, Fe, Pd}–Ni–Si quaternary systems

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Akselrud, Lev
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Zitation

Martyniak, R.-I., Muts, N., Bobnar, M., Akselrud, L., & Gladyshevskii, R. (2022). Magnetic properties of phases with Au4Al-type structure in the Cr–{Cu, Fe, Pd}–Ni–Si quaternary systems. Journal of Solid State Chemistry, 315: 123511, pp. 1-5. doi:10.1016/j.jssc.2022.123511.

Zitierlink: https://hdl.handle.net/21.11116/0000-000B-1DCB-1

Zusammenfassung

The crystal structures of three (Cr,Ni)4−xTxSi phases (T = Cu, Fe, Pd) were refined from X-ray powder diffraction data. The compounds crystallize with Au4Al-type structures (Pearson symbol cP20, space group P213): unit-cell parameter a = 0.612718(9) nm for the composition (Cr0.341Cu0.061Ni0.598)4Si, a = 0.612890(5) nm for (Cr0.341Fe0.061Ni0.598)4Si, and a = 0.616219(5) nm for (Cr0.341Pd0.061Ni0.598)4Si. The temperature dependence of the magnetic susceptibility was studied in external fields of up to 7 T at temperatures between 1.8 and 400 K. The three investigated samples were found to be paramagnets governed by the modified Curie-Weiss law: χ0 = 161⋅ 10−6 emu g-at.−1, μeff = 0.34 μB/atom, θp = −7(2) K for (Cr0.341Cu0.061Ni0.598)4Si; χ0 = 182⋅ 10−6 emu g-at.−1, μeff = 0.63 μB/atom, θp = −4(3) K for (Cr0.341Fe0.061Ni0.598)4Si; χ0 = 154⋅ 10−6 emu g-at.−1, μeff = 0.48 μB/atom, θp = −8(2) K for (Cr0.341Pd0.061Ni0.598)4Si. © 2022 Elsevier Inc.