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Fe48Co52 Alloy Nanowire Arrays: Effects of Magnetic Field Annealing |
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| Authors: | Hai-lin Su Shao-long Tang Rui-long Wang Yi-qing Chen Chong Jia and You-wei Du |
| Institution: | School of Materials Science and Engineering,Hefei University of Technology,Hefei 230009, China;National Laboratory of Solid State Microstructure and Department of Physics, Nanjing University,Nanjing 210093, China;National Laboratory of Solid State Microstructure and Department of Physics, Nanjing university,Nanjing 210093, China;National Laboratory of Solid State Microstructure and Department of Physics, Nanjing University,Nanjing 210093, China;School of Materials Science and Engineering,Hefei University of Technology,Hefei 230009, China;School of Materials Science and Engineering,Hefei University of Technology,Hefei 230009, China;National Laboratory of Solid State Microstructure and Department of Physics, Nanjing University,Nanjing 210093, China |
| Abstract: | The effects of magnetic field annealing on the properties of Fe48Co52 alloy nanowire arrayswith various interwire distances (Di=30-60 nm) and wire diameters (Dw=22-46 nm) wereinvestigated in detail. It was found that the array's best annealing temperature and crystalline structure did not show any apparent dependence on the treatment of applying a 3 kOe magnetic field along the wire during the annealing process. For arrays with small Dw or with large Di, the treatment of magnetic field annealing also had no obvious in°uence on their magnetic performances. However, such a magnetic field annealing constrained the shift of the easy magnetization direction and improved the coercivity and the squareness obviously for arrays with large Dw or with small Di. The difference in the intensity of the effective anisotropic field within the arrays was believed to be responsible for this different variationof the array's magnetic properties after magnetic field annealing. |
| Keywords: | FeCo alloy Nanowire array Magnetic field annealing Magnetic property Effective anisotropic field |
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