Magnetostatic Interaction in Fe-Co Nanowires

被引：21

作者：

Elbaile, Laura ^{[1
]}

Crespo, Rosario D. ^{[1
]}

Vega, Victor ^{[2
]}

Garcia, Jose A. ^{[1
]}

机构：

[1] Univ Oviedo, Dept Fis, Fac Ciencias, E-33007 Oviedo, Spain

[2] Unidad Membranas Nanoporosas, Oviedo 33006, Spain

来源：

JOURNAL OF NANOMATERIALS | 2012年 / 2012卷

关键词：

MAGNETIC-PROPERTIES; ARRAYS; DEPENDENCE; ALUMINA;

D O I：

10.1155/2012/198453

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Arrays of Fe-Co alloy nanowires with diameter around 35 nm and several micrometers in length have been synthesized by codepositing Fe and Co into porous anodic alumina. The morphology, structure, and magnetic properties of the nanowires (hysteresis loops and remanence curves) were characterized by SEM, TEM, X-ray diffraction (XRD), and VSM, respectively. The XRD patterns indicate that the Fe-Co nanowires present a body-centered cubic (bcc) structure and a preferred (110) orientation perpendicular to the template surface. From the hysteresis loops obtained with the magnetic field applied in the axis direction of the nanowires, we can observe that the coercive field slightly decreases when the nanowire length increases. This magnetic behaviour is analyzed considering the shape anisotropy and the dipolar interactions among nanowires.

引用

页数：6

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