Szczegóły publikacji
Opis bibliograficzny
Magnetic properties and local chemical ordering in $FeCoNiPd_{x}$ and $Cr_{x}FeCoNiPd$ high-entropy alloys / J. CIEŚLAK, M. Calvo-Dahlborg, M. Reissner, U. Dahlborg // Journal of Alloys and Compounds ; ISSN 0925-8388 . — 2026 — vol. 1070 art. no. 188677, s. 1–9. — Bibliogr. s. 9, Abstr. — Publikacja dostępna online od: 2026-05-20
Autorzy (4)
- AGHCieślak Jakub
- Calvo-Dahlborg Monique
- Reissner Michael
- Dahlborg Ulf
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 168392 |
|---|---|
| Data dodania do BaDAP | 2026-06-17 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.jallcom.2026.188677 |
| Rok publikacji | 2026 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Journal of Alloys and Compounds |
Abstract
High-entropy alloys (HEAs) are a class of multicomponent systems in which the stabilization of simple crystal structures can be driven by high configurational entropy. In this work, we investigate the magnetic properties of two HEA series, FeCoNiPdx and CrxFeCoNiPd (x=0−2), using Vibrating Sample Magnetometry and 57Fe Mössbauer spectroscopy. In the FeCoNiPdx system, palladium substitution causes only a slight reduction in the magnetic ordering temperature and average magnetic moment, with minimal changes to Mössbauer spectra. In contrast, chromium substitution strongly reduces the average hyperfine magnetic field, broadens its distribution, and significantly decreases the ordering temperature, with the Cr2FeCoNiPd composition exhibiting a paramagnetic spectrum at 80 K. To interpret these trends, electronic structure calculations were performed for a large number of chemically disordered supercells, allowing the construction of a local environment model of atomic magnetic moments. By combining this model with an inverse Monte Carlo optimization constrained by experimental magnetization values, information about the statistics of local atomic configurations was obtained. The analysis suggests tendencies towards short-range chemical ordering: clustering of Fe and Co atoms and a reduced probability of Fe–Co nearest-neighbour pairs. This behaviour differs from typical trends observed in Cantor-type alloys and may be related to local lattice distortions induced by Pd atoms as well as competing chemical and magnetic interactions.
