期刊
CHEMICAL PHYSICS LETTERS
卷 776, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.cplett.2021.138675
关键词
MEGA-DFT; AuFe clusters; Nanoalloys; Subnanometre clusters; QTAIM
资金
- EPSRC [EP/P020232, EP/L000202, EP/J010804/1]
In this study, the lowest energy structures of AuFe alloys at subnanometer scale were determined using the Mexican Enhanced Genetic Algorithm coupled with density functional theory. Various stability criteria were employed to analyze the energetics, structural transitions, and segregation tendencies. The theoretical insights provided valuable information for the development of new AuFe nanoalloy-based materials for technological applications.
The limited mutual solubility between Au and Fe in the bulk scale has inhibited the formation of their alloys. Here we report the lowest energy structures of AuFe alloys in subnanometre scale, employing the Mexican Enhanced Genetic Algorithm coupled with density functional theory. The energetics, structural transitions, and tendency of segregation have been analysed by different stability criteria. Physico-chemical properties for all compositions have been studied using Koopman's approximation. The topological parameters for the metalmetal interactions have been calculated using QTAIM theory. Exploring such valuable theoretical insights is of great importance in investigating new AuFe nanoalloy-based materials for technological applications.
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