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Temperature dependence of the magnetic anisotropy and magnetostriction of Fe100−xGax (x = 8.6, 16.6, 28.5)
Ames Laboratory Conference Papers, Posters, and Presentations
  • A. E. Clark, Clark Associates
  • M. Wun-Fogle, United States Navy
  • J. B. Restorff, United States Navy
  • Kevin W. Dennis, Iowa State University
  • Thomas A. Lograsso, Iowa State University
  • R. William McCallum, Iowa State University
Document Type
Conference Proceeding
49th Annual Conference on Magnetism and Magnetic Materials
Publication Date
(30.3321838, -81.65565099999998)
The temperature dependence of the lowest order magnetic anisotropy constant K1 and the lowest order saturation magnetostriction constant, (3/2)λ100, were measured from 4 K to 300 K for Fe91.4Ga8.6,Fe83.4Ga16.6, and Fe71.5Ga28.5 and were compared to the normalized magnetization power law, ml(l+1)/2. Fe91.4Ga8.6 maintains the magnetostriction anomaly of Fe (dλ100/dT>0) and K1 is a reasonable fit to the ml(l+1)/2power law with K1(0 K) ≅ 90 kJ/m3. Fe83.4Ga16.6 does not show a magnetostriction anomaly, but fits the power law remarkably well. Fe71.5Ga28.5 possesses a small K1( ∼ 1 kJ/m3) at all temperatures and a large temperature dependent magnetostriction, reaching ∼ 800 ppm at low temperature.

Copyright 2005 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

The following article appeared in Journal of Applied Physics 97 (2005): 10M316 and may be found at

Copyright Owner
American Institute of Physics
Citation Information
A. E. Clark, M. Wun-Fogle, J. B. Restorff, Kevin W. Dennis, et al.. "Temperature dependence of the magnetic anisotropy and magnetostriction of Fe100−xGax (x = 8.6, 16.6, 28.5)" Jacksonville, FL(2005)
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