Structure and spin-glass magnetism of the Fe$_{1.5}$Ni$_{1.5}$Ga$_4$ metallic alloy

Buxi, Krishnendu (avtor), Pan, Rahul (avtor), Jagličić, Zvonko (avtor), Jelen, Andreja (avtor), Luzar, Jože (avtor), Mihor, Peter (avtor), Vrtnik, Stanislav (avtor), Koželj, Primož (avtor), Petrović, Julia (avtor), Avdeev, Maxim (avtor), Pratim Jana, Partha (avtor), Dolinšek, Janez (avtor)

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.

• Jezik: Angleški jezik
• Ključne besede: magnetic properties, alloys, intermetallics, thermodynamic properties, quantum mechanics
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FGG - Fakulteta za gradbeništvo in geodezijo ; FMF - Fakulteta za matematiko in fiziko
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2026
• Št. strani: Str. 5049-5059
• Številčenje: Vol. 65, iss. 9
• PID: 20.500.12556/RUL-189519
• UDK: 546
• ISSN pri članku: 1520-510X
• DOI: 10.1021/acs.inorgchem.5c05447
• COBISS.SI-ID: 269941763
• Datum objave v RUL: 08.10.2026

Gradivo je del revije

• Naslov: Inorganic chemistry
• Skrajšan naslov: Inorg. chem.
• Založnik: American Chemical Society
• ISSN: 1520-510X
• COBISS.SI-ID: 512805401

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: zlitine, kovine, magnetne lastnosti, relativistična mehanika, termodinamika