Document Type

Conference Proceeding

Conference

49th Annual Conference on Magnetism and Magnetic Materials

Publication Date

5-16-2005

DOI

10.1063/1.1856731

City

Jacksonville, FL

Abstract

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.

Comments

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 http://dx.doi.org/10.1063/1.1856731.

Copyright Owner

American Institute of Physics

Language

en

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