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.
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7 May 2014
PROCEEDINGS OF THE 55TH ANNUAL CONFERENCE ON MAGNETISM AND MAGNETIC MATERIALS
14-18 November 2010
Atlanta, Georgia
Research Article|
Magnetism and Magnetic Materials|
March 13 2014
Tailoring magnetic and microwave absorption properties of glass-coated soft ferromagnetic amorphous microwires for microwave energy sensing
J. Devkota;
J. Devkota
1
Department of Physics, University of South Florida
, Tampa, Florida 33620, USA
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P. Colosimo;
P. Colosimo
a)
2
Applied Physics Laboratory, University of Washington
, Seattle, Washington 98105, USA
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A. Chen;
A. Chen
1
Department of Physics, University of South Florida
, Tampa, Florida 33620, USA
2
Applied Physics Laboratory, University of Washington
, Seattle, Washington 98105, USA
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V. S. Larin;
V. S. Larin
3
“MicroFir Tehnologii Industriale” SRL
, 26 Gurie Grosu str., apt.39, 2028 Chisinau, Moldova
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H. Srikanth;
H. Srikanth
1
Department of Physics, University of South Florida
, Tampa, Florida 33620, USA
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M. H. Phan
M. H. Phan
a)
1
Department of Physics, University of South Florida
, Tampa, Florida 33620, USA
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a)
Author to whom correspondence should be addressed. Electronic mail: [email protected] and [email protected].
J. Appl. Phys. 115, 17A525 (2014)
Article history
Received:
September 27 2013
Accepted:
December 12 2013
Citation
J. Devkota, P. Colosimo, A. Chen, V. S. Larin, H. Srikanth, M. H. Phan; Tailoring magnetic and microwave absorption properties of glass-coated soft ferromagnetic amorphous microwires for microwave energy sensing. J. Appl. Phys. 7 May 2014; 115 (17): 17A525. https://doi.org/10.1063/1.4868329
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