Thermal training of exchange bias in epitaxial<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="normal">Fe</mml:mi><mml:mo>/</mml:mo><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">KNiF</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>

Wee, Leonard; Stamps, R. L.; Małkiński, L.; Celiński, Z.; Skrzypek, D.

doi:10.1103/physrevb.69.134425

Cited by 26 publications

(20 citation statements)

References 45 publications

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“…Rotatable anisotropies are also commonly observed in exchange bias multilayer systems or in systems where spins in a thin magnetic layer experience strong pinning at a surface or interface. 63 This is also consistent with the variation of the slope we observe for different seed and capping layers (Fig. 11).…”

Section: Discussionsupporting

confidence: 79%

Precise determination of the spectroscopic g-factor by use of broadband ferromagnetic resonance spectroscopy

Shaw

Nembach

Silva

et al. 2013

Journal of Applied Physics

134

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We demonstrate that the spectroscopic g−factor can be determined with high precision and accuracy by broadband ferromagnetic resonance measurements and applying an asymptotic analysis to the data. Spectroscopic data used to determine the g−factor is always obtained over a finite range of frequencies, which can result in significant errors in the fitted values of the spectroscopic g−factor. We show that by applying an asymptotic analysis to broadband datasets, precise values of the intrinsic g−factor can be determined with errors well below 1 %, even when the exact form of the Kittel equation (which describes the relationship between the frequency and resonance field) is unknown. We demonstrate this methodology with measured data obtained for sputtered Ni 80 Fe 20 ("Permalloy") thin films of varied thicknesses, where we determine the bulk g−factor value to be 2.109 ± 0.003. Such an approach is further validated by application to simulated data that includes both noise and an anisotropy that is not included in the Kittel equation that was used in the analysis. Finally, we show a correlation of thickness and interface structure to the magnitude of the asymptotic behavior, which provide insight into additional mechanisms that may induce deviations from the Kittel equation.2

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Section: Discussionsupporting

confidence: 79%

Precise determination of the spectroscopic g-factor by use of broadband ferromagnetic resonance spectroscopy

Shaw

Nembach

Silva

et al. 2013

Journal of Applied Physics

134

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“…H with temperature is similar to that of a rotatable anisotropy observed previously by us for KNiF3 systems [8,9], and we suggest that…”

Section: Afm Dynsupporting

confidence: 62%

“…A rotatable anisotropy was able to describe well FMR results in the previous work. Possible mechanisms underlying the formation of the rotatable anisotropy were discussed in references [8] and [9], and argued to be consistent with measured linewidths. The essential idea is that the Fe exchange couples to different regions of the KNiF3 interface, and coupling between these regions can produce a rotatable anisotropy and coercivity as observed experimentally.…”

Section: Discussionmentioning

confidence: 77%

“…Some evidence for this may come from our MOKE magnetometer studies on Fe/FeF2 structure [23] and the observations made by some of us for Fe/KNiF3 system [8,9]. For these reference bilayers a close correspondence between linewidth and coercive field HC (see figure 5(a)) was noted.…”

Section: Fmr Linewidthmentioning

confidence: 83%

“…Results of magnetometry and FMR studies of bilayered thin films of single crystal Fe(001) and either single crystal or polycrystalline KNiF3 are given in references [8,9]. The smallest lattice mismatch to the Fe is 1.2%, assuming that the Fe/KNiF3 interface coincides at the (100) face of both materials.…”

Section: T I S U S E F U L a T T H I S P O I N T T O S U M M A R I mentioning

confidence: 99%

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Dynamic and Rotatable Exchange Anisotropy in Fe/KNiF3/FeF2 Trilayers

Widuch¹,

Robert²,

Skrzypek³

et al. 2013

Ferromagnetic Resonance - Theory and Applications

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Solid‐state formation of ferromagnetic δ‐Mn_0.6Ga_0.4 thin films with high rotatable uniaxial anisotropy

Myagkov

Жигалов

Быкова

et al. 2012

Physica Status Solidi (b)

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Solid‐state reactions in Ga/Mn polycrystalline films of the composition 1 Ga:3 Mn were experimentally investigated. Our X‐ray study showed that the formation of the Ga/Mn → (250 °C) ϕ‐Ga7.7Mn2.3 → (350 °C) δ‐Mn0.6Ga0.4 phase sequence occurs when the annealing temperature is increased to 400 °C. δ‐Mn0.6Ga0.4 samples were found to have high rotatable uniaxial anisotropy. We also showed that magnetic fields with coercivities above H > HC = 8.3 kOe can be used to orient the easy anisotropy axis in any spatial direction while taking the angle of the lag into account.

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Thermal training of exchange bias in epitaxialFe/KNiF3

Cited by 26 publications

References 45 publications

Precise determination of the spectroscopic g-factor by use of broadband ferromagnetic resonance spectroscopy

Precise determination of the spectroscopic g-factor by use of broadband ferromagnetic resonance spectroscopy

Dynamic and Rotatable Exchange Anisotropy in Fe/KNiF3/FeF2 Trilayers

Solid‐state formation of ferromagnetic δ‐Mn_0.6Ga_0.4 thin films with high rotatable uniaxial anisotropy

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Thermal training of exchange bias in epitaxialFe/KNiF3

Cited by 26 publications

References 45 publications

Precise determination of the spectroscopic g-factor by use of broadband ferromagnetic resonance spectroscopy

Precise determination of the spectroscopic g-factor by use of broadband ferromagnetic resonance spectroscopy

Dynamic and Rotatable Exchange Anisotropy in Fe/KNiF3/FeF2 Trilayers

Solid‐state formation of ferromagnetic δ‐Mn0.6Ga0.4 thin films with high rotatable uniaxial anisotropy

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Product

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Solid‐state formation of ferromagnetic δ‐Mn_0.6Ga_0.4 thin films with high rotatable uniaxial anisotropy