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Broadband Characterization of Stress Induced Anisotropy in Nanocomposite Co74.6Fe2.7Mn2.7Nb4Si2B14We report on the broadband characterization of Co74:6Fe2:7Mn2:7Nb4Si2B14 (at%) melt-spun, soft magnetic alloy ribbons after various secondary processing treatments. Ribbons were investigated in the as-cast (melt-spun) condition, after annealing under stress at 50 - 200 MPa, and after transverse magnetic field (TMF) annealing. The magnetization dynamics of these materials have been studied from 10 - 60 GHz using ferromagnetic resonance (FMR). The in-plane uniaxial anisotropy was determined from the FMR data and permeability extracted for each condition. The permeability determined from broadband FMR was in good agreement with independently determined values using vibrating sample magnetometry and impedance spectrometry of toroidal cores. The effective damping parameter (α (sub ϱff)) of all the samples was close to 0.015 except for the TMF sample, which showed higher damping, possibly due to two magnon scattering.
Document ID
20200002193
Acquisition Source
Glenn Research Center
Document Type
Accepted Manuscript (Version with final changes)
Authors
Abhishek Srivastava
(University of Alabama, Tuscaloosa Tuscaloosa, Alabama, United States)
Kayla Cole ORCID
(University of Alabama, Tuscaloosa Tuscaloosa, Alabama, United States)
Alicia Wadsworth
(University of Alabama, Tuscaloosa Tuscaloosa, Alabama, United States)
Thomas Burton
(University of Alabama, Tuscaloosa Tuscaloosa, Alabama, United States)
Claudia Mewes
(University of Alabama, Tuscaloosa Tuscaloosa, Alabama, United States)
Tim Mewes ORCID
(University of Alabama, Tuscaloosa Tuscaloosa, Alabama, United States)
Gregory B Thompson ORCID
(University of Alabama, Tuscaloosa Tuscaloosa, Alabama, United States)
Ronald D Noebe
(Glenn Research Center Cleveland, Ohio, United States)
Alex M Leary
(Glenn Research Center Cleveland, Ohio, United States)
Date Acquired
April 3, 2020
Publication Date
December 24, 2019
Publication Information
Publication: Journal of Magnetism and Magnetic Materials
Publisher: Elsevier
Volume: 500
Issue Publication Date: April 15, 2020
ISSN: 0304-8853
URL: https://www.sciencedirect.com/science/article/pii/S0304885319333165#!
Subject Category
Metals And Metallic Materials
Report/Patent Number
GRC-E-DAA-TN76743
Funding Number(s)
CONTRACT_GRANT: 80NSSC18M0023
WBS: 081876.02.03.10.01.01.02
PROJECT: ARMD_081876
Distribution Limits
Public
Copyright
Public Use Permitted.
Technical Review
External Peer Committee
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