20.500.12556/DiRROS-28894 Complex magnetism of single-crystalline AlCoCrFeNi nanostructured high-entropy alloy We have investigated magnetism of the Al28Co20Cr11Fe15Ni26 single-crystalline high-entropy alloy. The material is nanostructured, composed of a B2 matrix with dispersed spherical-like A2 nanoparticles of average diameter 64 nm. The magnetism was studied from 2 to 400 K via direct-current magnetization, hysteresis curves, alternating-current magnetic susceptibility, and thermoremanent magnetization time decay, to determine the magnetic state that develops in this highly structurally and chemically inhomogeneous material. The results reveal that the Cr-free B2 matrix of composition Al28Co25Fe15Ni32 forms a disordered ferromagnetic (FM) state that undergoes an FM transition at 390 K. The Al- and Ni-free A2 nanoparticles of average composition Co19Cr56Fe25 adopt a core-shell structure, where the shells of about 2 nm thickness are CoFe enriched. While the shells are FM, the nanoparticle cores are asperomagnetic, classifying into the broad class of spin glasses. Asperomagnetism develops below 15 K and exhibits broken-ergodicity phenomena, typical of magnetically frustrated systems. complex magnetism high-entropy alloys nanostructured alloys kompleksni magnetizem visokoentropijske zlitine nanostrukturirane zlitine true false true Elsevier Nizozemska Angleški jezik Slovenski jezik ©2023 The Author(s). Neznano 2026-04-13 08:40:32 2026-04-13 08:40:32 2026-04-14 03:50:20 0000-00-00 00:00:00 2023 0 0 Nasl. z nasl. zaslona; Soavtorji iz Slovenije: Andreja Jelen, Goran Dražić, Stanislav Vrtnik, Jože Luzar, Magdalena Wencka, Anton Meden, Janez Dolinšek; Opis vira z dne 29. 5. 2023; str. 1-14 iss. 6, [article no.] 106894 Vol. 26 16 Jun. 2023 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2023-02-09 2023-05-12 2023-05-18 537 2589-0042 10.1016/j.isci.2023.106894 153712387 https://www.sciencedirect.com/science/article/pii/S2589004223009719?via%3Dihub#abs0015 1 aef32041-3703-11f1-9cc3-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=43080 RAZ_Kozelj_Primoz_2023.pdf RAZ_Kozelj_Primoz_2023.pdf 1 2715F1D75664671D3EA265418215BF95 835bcb5f3bf9a04e167b0000f0e69e33ea3e22f9f89bd94216ac08cfdec726c8 282d9f81-3705-11f1-9cc3-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=43081 Institut Jožef Stefan 0 0 0