Antiferromagnetism and Phase Stability of CrMnFeCoNi High-Entropy Alloy
It has long been suspected that magnetism could play a vital role in the phase stability of multicomponent high-entropy alloys. However, the nature of the magnetic order, if any, has remained elusive. Here, by using elastic and inelastic neutron scattering, we demonstrate evidence of antiferromagnetic order below ∼80 K and strong spin fluctuations persisting to room temperature in a single-phase face-centered cubic (fcc) CrMnFeCoNi high-entropy alloy. Despite the chemical complexity, the magnetic structure in CrMnFeCoNi can be described as γ-Mn-like, with the magnetic moments confined in alternating (001) planes and pointing toward the ⟨111⟩ direction. Combined with first-principles calculation results, it is shown that the antiferromagnetic order and spin fluctuations help stabilized the fcc phase in CrMnFeCoNi high-entropy alloy.
Authors
- Xun Sun (ORCID: https://orcid.org/0000-0002-6504-5045)
- L. Zhu (ORCID: https://orcid.org/0000-0001-8418-5265)
- Muhammad Naeem (ORCID: https://orcid.org/0000-0003-3243-8130)
- Xun‐Li Wang (ORCID: https://orcid.org/0000-0003-4060-8777)
- Kenji Nakajima (ORCID: https://orcid.org/0000-0003-2085-3425)
- Ji Qi (ORCID: https://orcid.org/0000-0001-5808-9931)
- Stefanus Harjo (ORCID: https://orcid.org/0000-0001-7386-2398)
- Bing Li (ORCID: https://orcid.org/0000-0002-0132-5021)
- Haiyan He
- Peng Liu (ORCID: https://orcid.org/0000-0002-0792-0657)
Institutions
- Japan Atomic Energy Agency (JP)
- City University of Hong Kong (HK)
- Bay Institute (US)
- City University of Hong Kong, Shenzhen Research Institute (CN)
- Great Bay University
- University of Birmingham (GB)
Publication Details
- Journal
- Physical Review Letters
- Published
- 2024-09-17
- DOI
- https://doi.org/10.1103/physrevlett.133.126701
- Citations
- 8
- Primary Topic
- High Entropy Alloys Studies
- Type
- article
- Field-Weighted Citation Impact
- 1.70
Funders
- City University of Hong Kong
- Croucher Foundation
- Ministry of Education, Culture, Sports, Science and Technology
- Ministry of Science and Technology of the People's Republic of China
- Basic and Applied Basic Research Foundation of Guangdong Province