Temperature dependence of the magnetic anisotropy and magnetostriction of Fe100−xGax (x=8.6, 16.6, 28.5) | Zendy

A. E. Clark | Zendy; M. WunFogle | Zendy; J. B. Restorff | Zendy; K. W. Dennis | Zendy; T. A. Lograsso | Zendy; R. W. McCallum | Zendy

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Temperature dependence of the magnetic anisotropy and magnetostriction of Fe100−xGax (x=8.6, 16.6, 28.5)

Author(s) -

A. E. Clark,

M. WunFogle,

J. B. Restorff,

K. W. Dennis,

T. A. Lograsso,

R. W. McCallum

Publication year - 2005

Publication title -

journal of applied physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.699

H-Index - 319

eISSN - 1089-7550

pISSN - 0021-8979

DOI - 10.1063/1.1856731

Subject(s) - magnetostriction , condensed matter physics , anisotropy , saturation (graph theory) , magnetic anisotropy , materials science , anomaly (physics) , magnetization , magnetic anomaly , power law , nuclear magnetic resonance , magnetic field , physics , optics , quantum mechanics , statistics , mathematics , combinatorics , geophysics

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)∕2 power law with K1(0K)≅90kJ∕m3. Fe83.4Ga16.6 does not show a magnetostriction anomaly, but fits the power law remarkably well. Fe71.5Ga28.5 possesses a small K1(∼1kJ∕m3) at all temperatures and a large temperature dependent magnetostriction, reaching ∼800ppm at low temperature.

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