Lattice distortion inducing local antiferromagnetic behaviors in FeAl alloys
| Autor: | Deye Lin, Fuyang Tian, Zhen Yang, Ya-Fan Zhao |
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| Rok vydání: | 2020 |
| Předmět: |
Work (thermodynamics)
Materials science Condensed matter physics Magnetic moment Ab initio Lattice distortion FEAL 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Condensed Matter::Materials Science 0103 physical sciences Physics::Atomic and Molecular Clusters Antiferromagnetism Curie temperature General Materials Science Physics::Atomic Physics 010306 general physics 0210 nano-technology |
| Zdroj: | Journal of physics. Condensed matter : an Institute of Physics journal. 32(46) |
| ISSN: | 1361-648X |
| Popis: | In this work, we study the local magnetic moment as a function of order degree in solid-solution FeAl alloys. Using the combination of ab initio method and similar atomic environment model, we find that the decrease of magnetic moment, even antiferromagnetic behavior, of the Fe atoms derives from the distorted local atomic clusters centered at Fe atoms on the Fe-atom sublattice sites in B2 FeAl alloys. While the local magnetic moment of Fe atoms is up to 2.2 μ B on the Al and Fe solid-solution sublattice sites. The ordering results in the decrease of Curie temperature and magnetic moment of solid-solution FeAl alloys. |
| Databáze: | OpenAIRE |
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