1. A general rule for transition metals doping on magnetic properties of Fe-based metallic glasses.
- Author
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Chen, Hui, Zhou, Shaoxiong, Dong, Bangshao, Jin, Jianjun, Liu, Tianqi, and Guan, Pengfei
- Subjects
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METALLIC glasses , *MAGNETIC properties , *MAGNETIC flux density , *TRANSITION metals , *MAGNETIC moments , *IRON-manganese alloys , *CONDUCTION electrons - Abstract
The magnetic and electronic properties of Fe 77 X 5 Si 4 B 10 P 4 (X = V, Cr, Mn, Fe, Co, and Ni) metallic glasses were investigated based on first-principle calculations. While the ability of losing electrons is increasingly weaker, that of acquiring charges is stronger with increasing the number of valence electrons from V to Ni atoms. For the addition of V, Cr, and Mn nonmagnetic atoms, while they all behave antiferromagnetic character, the magnetic moments of nearest neighboring (NN) Fe atoms around them are weaker compared to that of Fe 82 Si 4 B 10 P 4 , resulting from the strong hybridization between 3 d states of impurity and Fe. For Co and Ni magnetic atoms, while the magnetic moments of NN Fe atoms are increasingly stronger than that in Fe 82 Si 4 B 10 P 4 , the local magnetic moments of additive atoms reduce. These result in that the addition of X atoms weakens the saturation magnetic flux density of Fe 82 Si 4 B 10 P 4. Moreover, if Co with a minor proportion is incorporated, it will enhance the total magnetization compared to Fe 82 Si 4 B 10 P 4 metallic glass, which is certified by experimental results. Image 1 • The ability of losing electrons is increasingly weaker from V to Ni atoms. • While V, Cr, and Mn behave antiferromagnetically, magnetic moments of Co and Ni reduce. • The addition of X atoms weakens the saturation magnetic flux density of Fe 82 Si 4 B 10 P 4. • If Co with a minor proportion is added, it will enhance the magnetization of Fe 82 Si 4 B 10 P 4. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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