2018
DOI: 10.1063/1.5040666
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Temperature dependence of interlayer exchange coupling and Gilbert damping in synthetic antiferromagnetic trilayers investigated using broadband ferromagnetic resonance

Abstract: This work reports a comprehensive investigation of the temperature dependence of the interlayer exchange coupling in the antiferromagnetic coupling of a FeNi/Ru/FeNi trilayer sample using broadband ferromagnetic resonance. The temperature dependence of the interlayer exchange coupling fields is obtained by applying Kittel fitting to the systematic frequency dependence of the resonance field between the acoustic and optic modes and by assuming equal effective magnetization of the two resonance modes. It is foun… Show more

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Cited by 24 publications
(21 citation statements)
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“…(e) Interlayer exchange field, HE, calculated at different temperatures from the fitting of the curves for two modes to the mentioned model; the values have been derived for magnetic field applied at ψ ≈ 0 • , 25 cedure provided in Supplementary section IV) of the two branches for ψ ≈ 55 • and T ≈ 1.5 K. The magnitude of exchange field agrees with previous observations in antiferromagnetic systems [15,16,28]. In addition, a decreasing trend is seen in the interlayer exchange field as a function of temperature similar to other systems [29,30]. As the temperature is increased from 1.5 K to 10 K, the interlayer exchange field reduces by ≈ 30%.…”
supporting
confidence: 86%
“…(e) Interlayer exchange field, HE, calculated at different temperatures from the fitting of the curves for two modes to the mentioned model; the values have been derived for magnetic field applied at ψ ≈ 0 • , 25 cedure provided in Supplementary section IV) of the two branches for ψ ≈ 55 • and T ≈ 1.5 K. The magnitude of exchange field agrees with previous observations in antiferromagnetic systems [15,16,28]. In addition, a decreasing trend is seen in the interlayer exchange field as a function of temperature similar to other systems [29,30]. As the temperature is increased from 1.5 K to 10 K, the interlayer exchange field reduces by ≈ 30%.…”
supporting
confidence: 86%
“…[ 18,23,37 ] In addition, a decreasing trend is seen in the interlayer exchange field as a function of temperature similar to other systems. [ 38,39 ] As the temperature is increased from 1.5 to 10 K, the interlayer exchange field reduces by 30%.…”
Section: Figurementioning
confidence: 99%
“…The acoustic (optical) mode is excited by perpendicular (parallel) configuration between microwave and applied magnetic fields. There are a number of reports in which these two modes in different SyAFs have been studied in great detail [24][25][26][27][28]. For example, mutual spin pumping within the coupled moments has been proposed [29][30][31] and experimentally demonstrated [32][33][34][35].…”
mentioning
confidence: 99%