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Updated: Mar 21, 2026

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
Ab initio investigation of competing antiferromagnetic structures in low Si-content FeMn(PSi) alloy
Guijiang Li1, Olle Eriksson2, Börje Johansson1,2
1Applied Materials Physics, Department of Materials Science and Engineering, KTH Royal Institute of Technology, SE-10044, Stockholm, Sweden.
Abstract:
The antiferromagnetic structures of a low Si-content FeMn(PSi) alloy were investigated by first principles calculations. One possible antiferromagnetic structure in supercell along the c-axis was revealed in FeMnP0.75Si0.25 alloy. It was found that atomic disorder occupation between Fe atom on 3f and Mn atoms on 3g sites is responsible for the formation of antiferromagnetic structures. Furthermore the magnetic competition and the coupling between possible AFM supercells along the c and a-axis can promote a non-collinear antiferromagnetic structure. These theoretical investigations help to deeply understand the magnetic order in FeMn(PSi) alloys and benefit to explore the potential magnetocaloric materials in Fe2P-type alloys.
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