Improved microwave magnetic and attenuation properties due to the dopant V2O5 in W-type barium ferrites

被引：23

作者：

Wu, Y. P.

Ong, C. K.

Lin, G. Q.

Li, Z. W.

机构：

[1] Natl Univ Singapore, Ctr Supercond & Magnet Mat, Singapore 119260, Singapore

[2] Natl Univ Singapore, Dept Phys, Singapore 119260, Singapore

[3] Natl Univ Singapore, Temasek Labs, Singapore 119260, Singapore

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2006年 / 39卷 / 14期

关键词：

D O I：

10.1088/0022-3727/39/14/006

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

High-frequency magnetic and attenuation properties of ferrite/polymer composites were investigated for undoped and V2O5 doped W-type barium ferrites, BaCoxZn2-xFe16O27, with x = 1.0, 1.3 and 1.5. The results show that, as compared to the undoped samples, the permeabilities mu'(0.5) and mu''(max) are increased by about 50% and 40% for composites doped with 1.0 wt% of V2O5, due to the improved domain wall permeability. These composites have superior attenuation properties over the undoped ones and are, therefore, potential candidates for EM attenuation materials with low reflectivity and broad bandwidth covering S, X and Ku bands.

引用

页码：2915 / 2919

页数：5

共 14 条

[1] Magnetic relaxation and anisotropy effects on high-frequency permeability [J].