Tailoring magnetic and microwave absorption properties of glass-coated soft ferromagnetic amorphous microwires for microwave energy sensing

被引：9
|
作者：
Devkota, J. [1 ]
Colosimo, P. [2 ]
Chen, A. [1 ,2 ]
Larin, V. S. [3 ]
Srikanth, H. [1 ]
Phan, M. H. [1 ]
机构：
[1] Univ S Florida, Dept Phys, Tampa, FL 33620 USA
[2] Univ Washington, Appl Phys Lab, Seattle, WA 98105 USA
[3] MicroFir Tehnol Ind SRL, Kishinev 2028, Moldova
来源：
JOURNAL OF APPLIED PHYSICS | 2014年 / 115卷 / 17期
关键词：
COMPOSITES; RESONANCE; WIRES;
D O I：
10.1063/1.4868329
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A comparative study of the magnetic softness, giant magnetoimpedance (GMI) effect, and microwave absorption capacity of glass-coated amorphous Co64.63Fe4.97B16Si11Cr3.4Ni0.02 and Co68B15Si10Mn7 microwires has been performed. We find that the Mn-containing sample exhibits a softer magnetic property, a larger GMI ratio, and a higher microwave absorption capacity as compared to those with a Fe-Cr-Ni composition. As a result, the Mn-containing microwire is shown to be a better microwave absorber for fabrication of a new class of microwave energy sensor based on Fiber Bragg Grating. Our study emphasizes a correlation between the magnetic softness, GMI, and microwave absorption in the microwires and paves the way to improving the performance of such sensors by tailoring their soft magnetic properties. (C) 2014 AIP Publishing LLC.
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页数：3
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