Investigation of the microstructure, magnetic and microwave properties of electrodeposited Ni_xFe_{1鈭?span style='font-style: italic'>x}(x = 0.2-0.76) films

详细信息	查看全文 | 推荐本文 |

• 作者：L.X. Phua^a ; ^{g0700691@nus.edu.sg} ; N.N. Phuoc^b ; C.K. Ong^a
• 关键词：Thin films ; Magnetic measurements
• 刊名：Journal of Alloys and Compounds
• 出版年：2012
• 期刊代码：45_09258388
• 类别：ms
• 出版时间：15 April, 2012
• 卷：520
• 期：Complete
• 页码：132-139
• 文件大小：2825 K

摘要

The microstructure, magnetic properties and microwave characteristics of NiFe films were investigated with chemical composition variation. It was found that Ni concentration has a strong influence on film stress and film surface roughness which induces variations in static and dynamic anisotropy field. Also, with the variation of Ni concentration, there is a spin-reorientation behavior which may be attributed to the contribution of the magnetic anisotropy originating from the composition gradient and the anisotropy induced by deposition field. Ferromagnetic resonance and rotatable magnetic anisotropy were observed for Ni_xFe_1鈭?em>x (x = 0.51-0.76) films. The results were discussed based on Landau-Lifshitz-Gilbert equation and magnetic ripple theory. The rotatable anisotropy field was highly correlated to the film surface roughness. The ferromagnetic resonance varied from 0.589 to 0.886 GHz as Ni concentration was increased from 0.51 to 0.76 wt. ratio.