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Magnetostriction constants of sputtered FeTaN single crystal thin films

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5 Author(s)
Varga, L. ; Dept. of Phys. & Astron., Alabama Univ., Tuscaloosa, AL, USA ; Doyle, W.D. ; Klemmer, T. ; Flanders, P.J.
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FeTaN single crystal thin films were grown to investigate the dependence of the magnetostriction constants, λ100 and λ111 on nitrogen content. Films with 5 wt.% Ta and different nitrogen contents were prepared by dc sputtering on MgO (100) substrates at elevated temperatures. The films' principal orientation with respect to the substrate were (100)||(100) and [100]||[110] with a small fraction of (221)||(100) due to twinning. The values of |λ100| and |λ111| relative to pure Fe decreased by a factor of ~2 to a minimum near 2 at% nitrogen and then slowly increased at higher nitrogen content. The saturation magnetostriction calculated for a polycrystalline material using the measured values of λ100 and λ111 shows a considerable discrepancy at higher nitrogen content with published experimental data

Published in:

Magnetics, IEEE Transactions on  (Volume:32 ,  Issue: 5 )

Date of Publication:

Sep 1996

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