Anisotropic Magnetism and Magnetoresistance in Iron Nanowire Arrays

M. N. Ou；T. J. Yang；Y. Y. Chen

Chinese Journal of Physics

47卷6期（2009 / 12 / 01）

847 - 852

英文

Highly ordered ferromagnetic iron nanowire (Fe NW) arrays with diameters of about 60 nm and 200 nm were fabricated by electro-chemical deposition into anodic aluminum oxide (AAO) templates. The magnetization measurements show the 60 nm NWs as having a larger anisotropic magnetization. This result was illustrated by the magnetic easy axis and preferred crystal orientation of [110] along with the longitudinal direction of the NWs, revealed by the X-ray diffraction (XRD) patterns. The obtained quadratic magnetic field dependence of the normalized magnetoresistance (MR) at low field for both 60 and 200 nm NWs is attributed to the anisotropic magnetoresistance in low-dimensional systems. Furthermore, the enhanced MR observed in the 60 nm NWs is attributed to additional spin-diffusion mechanisms.

1. 陳至威(2017)。利用掃描器法調查臺灣中部孟宗竹林及柳杉林之細根動態。國立臺灣大學森林環境暨資源學系學位論文。2017。1-84。 
2. 陳貞均(2017)。開發整合型醣胜肽分析策略應用於探討血清生物標記蛋白質。國立臺灣大學化學系學位論文。2017。1-128。