Effects of transition metals (V, Cr, Mn, Fe and Ni) doping on magnetic properties of Co-based amorphous alloys
Amorphous alloys exhibit numerous interesting and abundant magnetic properties due to their disordered structural traits and have been extensively studied by researchers. In this work, the effects of a small amount of transition metals doping on the magnetic properties of Co80-xMxB20 (x = 0, 2, 4, 6...
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Elsevier
2024-11-01
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| Series: | Journal of Materials Research and Technology |
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| author | Shuwei Lu Haiming Duan Qiang Li Chuntao Chang |
| author_facet | Shuwei Lu Haiming Duan Qiang Li Chuntao Chang |
| author_sort | Shuwei Lu |
| collection | DOAJ |
| description | Amorphous alloys exhibit numerous interesting and abundant magnetic properties due to their disordered structural traits and have been extensively studied by researchers. In this work, the effects of a small amount of transition metals doping on the magnetic properties of Co80-xMxB20 (x = 0, 2, 4, 6, 8, 10; M = V, Cr, Mn, Fe, Ni) amorphous alloys were systematically investigated by utilizing first-principles molecular dynamics. The trend of the magnetic moment change in the simulated calculation conforms well to the experimental results. The doping of V atoms leads to the fastest rate of decrease in the magnetic moment of the surrounding Co atoms, and there is only an antiferromagnetic interaction between the V and Co atoms. When doped with Cr and Mn atoms, there is mutual competition between ferromagnetic and antiferromagnetic coupling in the amorphous alloy, Cr reduces the magnetic moment of the surrounding Co atoms, while the change in the magnetic moment of the Co atoms around Mn is small. The doping of Fe and Ni causes an increase in the magnetic moment of the surrounding Co atoms. The reason may be due to the charge transfer between atoms. The doping of Fe and Ni has a small effect on the average magnetic moment of the Co atoms in the amorphous alloy. The results provide necessary theoretical support for the development of the Co-based amorphous alloys with excellent magnetic characteristics. |
| format | Article |
| id | doaj-art-74472f09ec8747c0a7db5cfec8d22dfb |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-74472f09ec8747c0a7db5cfec8d22dfb2024-12-26T08:53:36ZengElsevierJournal of Materials Research and Technology2238-78542024-11-0133193203Effects of transition metals (V, Cr, Mn, Fe and Ni) doping on magnetic properties of Co-based amorphous alloysShuwei Lu0Haiming Duan1Qiang Li2Chuntao Chang3Xinjiang Key Laboratory of Solid State Physics and Devices, Xinjiang University, Urumqi, Xinjiang, 830046, People's Republic of China; School of Physics Science and Technology, Xinjiang University, Urumqi, Xinjiang, 830046, People's Republic of China; Corresponding author. Xinjiang Key Laboratory of Solid State Physics and Devices, Xinjiang University, Urumqi, Xinjiang, 830046, People's Republic of China.Xinjiang Key Laboratory of Solid State Physics and Devices, Xinjiang University, Urumqi, Xinjiang, 830046, People's Republic of China; School of Physics Science and Technology, Xinjiang University, Urumqi, Xinjiang, 830046, People's Republic of ChinaXinjiang Key Laboratory of Solid State Physics and Devices, Xinjiang University, Urumqi, Xinjiang, 830046, People's Republic of China; School of Materials Science and Engineering, Xinjiang University, Urumqi, Xinjiang, 830046, People's Republic of ChinaSchool of Mechanical Engineering, Dongguan University of Technology, Dongguan, Guangdong, 523808, People's Republic of ChinaAmorphous alloys exhibit numerous interesting and abundant magnetic properties due to their disordered structural traits and have been extensively studied by researchers. In this work, the effects of a small amount of transition metals doping on the magnetic properties of Co80-xMxB20 (x = 0, 2, 4, 6, 8, 10; M = V, Cr, Mn, Fe, Ni) amorphous alloys were systematically investigated by utilizing first-principles molecular dynamics. The trend of the magnetic moment change in the simulated calculation conforms well to the experimental results. The doping of V atoms leads to the fastest rate of decrease in the magnetic moment of the surrounding Co atoms, and there is only an antiferromagnetic interaction between the V and Co atoms. When doped with Cr and Mn atoms, there is mutual competition between ferromagnetic and antiferromagnetic coupling in the amorphous alloy, Cr reduces the magnetic moment of the surrounding Co atoms, while the change in the magnetic moment of the Co atoms around Mn is small. The doping of Fe and Ni causes an increase in the magnetic moment of the surrounding Co atoms. The reason may be due to the charge transfer between atoms. The doping of Fe and Ni has a small effect on the average magnetic moment of the Co atoms in the amorphous alloy. The results provide necessary theoretical support for the development of the Co-based amorphous alloys with excellent magnetic characteristics.http://www.sciencedirect.com/science/article/pii/S2238785424020726Co-based amorphous alloysTransition metalsFirst-principles molecular dynamicsMagnetic properties |
| spellingShingle | Shuwei Lu Haiming Duan Qiang Li Chuntao Chang Effects of transition metals (V, Cr, Mn, Fe and Ni) doping on magnetic properties of Co-based amorphous alloys Journal of Materials Research and Technology Co-based amorphous alloys Transition metals First-principles molecular dynamics Magnetic properties |
| title | Effects of transition metals (V, Cr, Mn, Fe and Ni) doping on magnetic properties of Co-based amorphous alloys |
| title_full | Effects of transition metals (V, Cr, Mn, Fe and Ni) doping on magnetic properties of Co-based amorphous alloys |
| title_fullStr | Effects of transition metals (V, Cr, Mn, Fe and Ni) doping on magnetic properties of Co-based amorphous alloys |
| title_full_unstemmed | Effects of transition metals (V, Cr, Mn, Fe and Ni) doping on magnetic properties of Co-based amorphous alloys |
| title_short | Effects of transition metals (V, Cr, Mn, Fe and Ni) doping on magnetic properties of Co-based amorphous alloys |
| title_sort | effects of transition metals v cr mn fe and ni doping on magnetic properties of co based amorphous alloys |
| topic | Co-based amorphous alloys Transition metals First-principles molecular dynamics Magnetic properties |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424020726 |
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