Magnetostriction constants of sputtered FeTaN single crystal thin films

FeTaN single crystal thin films were grown to investigate the dependence of the magnetostriction constants, /spl lambda//sub 100/ and /spl lambda//sub 111/ on nitrogen content. Films with 5 wt.% Ta and different nitrogen contents were prepared by dc sputtering on MgO (100) substrates at elevated tem...

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Veröffentlicht in:IEEE Transactions on Magnetics 1996-09, Vol.32 (5), p.3542-3544
Hauptverfasser: Varga, L., Doyle, W.D., Klemmer, T., Flanders, P.J., Kozaczek, K.J.
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container_end_page 3544
container_issue 5
container_start_page 3542
container_title IEEE Transactions on Magnetics
container_volume 32
creator Varga, L.
Doyle, W.D.
Klemmer, T.
Flanders, P.J.
Kozaczek, K.J.
description FeTaN single crystal thin films were grown to investigate the dependence of the magnetostriction constants, /spl lambda//sub 100/ and /spl lambda//sub 111/ 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)/spl par/(100) and [100]/spl par/[110] with a small fraction of (221)/spl par/(100) due to twinning. The values of |/spl lambda//sub 100/| and |/spl lambda//sub 111/| relative to pure Fe decreased by a factor of /spl sim/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 /spl lambda//sub 100/ and /spl lambda//sub 111/ shows a considerable discrepancy at higher nitrogen content with published experimental data.
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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)/spl par/(100) and [100]/spl par/[110] with a small fraction of (221)/spl par/(100) due to twinning. The values of |/spl lambda//sub 100/| and |/spl lambda//sub 111/| relative to pure Fe decreased by a factor of /spl sim/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 /spl lambda//sub 100/ and /spl lambda//sub 111/ shows a considerable discrepancy at higher nitrogen content with published experimental data.</abstract><cop>United States</cop><pub>IEEE</pub><doi>10.1109/20.538684</doi><tpages>3</tpages></addata></record>
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source IEEE Electronic Library (IEL)
subjects CHEMICAL COMPOSITION
GRAIN ORIENTATION
Grain size
Iron
IRON BASE ALLOYS
Magnetic field measurement
Magnetic films
MAGNETOSTRICTION
MATERIALS SCIENCE
MONOCRYSTALS
Nitrogen
NITROGEN ADDITIONS
Optical films
Sputtering
Substrates
TANTALUM ALLOYS
X-ray diffraction
title Magnetostriction constants of sputtered FeTaN single crystal thin films
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