20.500.12556/RUL-189519 Structure and spin-glass magnetism of the Fe$_{1.5}$Ni$_{1.5}$Ga$_4$ metallic alloy The Ga-rich region of the Fe−Ni−Ga ternary system was investigated, by exploring a line of compositions Fe$_x$Ni$_{3−x}$Ga$_4$, with 0.5 ≤ x ≤ 2.5. The single-phase cubic material was found only at the composition Fe$_{1.5}$Ni$_{1.5}$Ga$_4$ and its immediate vicinity, representing a new phase in the Fe−Ni−Ga diagram. The homogeneity range of this phase was estimated by additionally exploring a set of compositions Fe$_x$Ni$_y$Ga$_z$ around the central composition Fe$_{1.5}$Ni$_{1.5}$Ga$_4$. The structural model was constructed based on the structure of the binary Ni$_3$Ga$_4$ parent phase, which crystallizes in the cubic Ia$\overline{3}$d space group. We have considered that by substituting Fe for Ni, the Ia$\overline{3}$d structure is preserved, with the Fe and Ni being statistically distributed at their 48g Wyckoff site. The possibility of a symmetry-reduced chiral structural model I4$_1$32 driven by chemical ordering of Fe and Ni cannot be entirely ruled out on the basis of the crystallographic study. The magnetic study of the Fe$_{1.5}$Ni$_{1.5}$Ga$_4$ phase has revealed that the material forms a spin glass phase below the spin freezing temperature T$_f$ ≈ 9 K. Since the spin glass ordering of the Fe and Ni magnetic moments is compatible with their random distribution, the magnetic study supports the disordered cubic Ia$\overline{3}$d model. magnetic properties alloys intermetallics thermodynamic properties quantum mechanics zlitine kovine magnetne lastnosti relativistična mehanika termodinamika true false true Angleški jezik Slovenski jezik Članek v reviji 2026-10-08 11:26:31 2026-10-08 11:26:32 2026-10-10 03:50:22 0000-00-00 00:00:00 2026 0 0 Str. 5049-5059 iss. 9 Vol. 65 Mar. 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 546 1520-510X 10.1021/acs.inorgchem.5c05447 269941763 structure-and-spin-glass-magnetism-of-the-fe1-5ni1-5ga4-metallic-alloy.pdf structure-and-spin-glass-magnetism-of-the-fe1-5ni1-5ga4-metallic-alloy.pdf 1 3740EE5F1EE0EBC0F3F295B7BE583929 fe45665d5f394fcb5824fe2423a3aaa27294f23248fa735ad5122bbc3511cddf ad8bd648-c2fa-11f1-8bc5-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=250136 https://pubs.acs.org/inocaj/article/65/9/5049/5083024/Structure-and-Spin-Glass-Magnetism-of-the-Fe1-5Ni1 0 81d00eae-c2fa-11f1-8bc5-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=250135 Fakulteta za gradbeništvo in geodezijo Fakulteta za matematiko in fiziko 0 0 0