Magnetic properties of Ni81Fe19/W90Ti10 multilayers

Morales, Marco A.; Lassri, H.; Biondo, A.; Rossi, Alexandre M.; Baggio‐Saitovitch, E.

doi:10.1016/s0304-8853(02)00386-4

Cited by 13 publications

(6 citation statements)

References 23 publications

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“…After the pinned NiFe layer deposition, the s values for the NiFe/WTi and WTi/air interfaces have significantly decreased. This effect could be explained based on two reasons: (i) the top NiFe layer deposition ages blocking/reducing the roughness cumulative behavior and/or (ii) the enhancement of the NiFe/FeMn interface s values is not only due to the cumulative process of the roughness [29] but it is also due to an expressive amount of atomic diffusion and chemical disorder in the NiFe/FeMn interfaces (stronger in the upper interface) which are greater than those found in the other interfaces like the NiFe/WTi interfaces that have low atomic diffusion, as already described by Morales et al [31], who found a magnetic dead layer at the NiFe/WTi interface of only 0.3 nm. Since the NiFe layer deposition [21] generates roughness components with long wavelengths (enhances the s values), one may expect that its deposition is not blocking the roughness cumulative process.…”

Section: Discussion and Resultsmentioning

confidence: 56%

Bottom and top AF/FM interfaces of NiFe/FeMn/NiFe trilayers

Nascimento

Passamani

Alvarenga

et al. 2008

Applied Surface Science

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Section: Discussion and Resultsmentioning

confidence: 56%

Bottom and top AF/FM interfaces of NiFe/FeMn/NiFe trilayers

Nascimento

Passamani

Alvarenga

et al. 2008

Applied Surface Science

Self Cite

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“…Наличие в спектрах СВР двух частей, описываемых отдельными сериями объемных стоячих спиновых мод, дает основание рассматривать сверхрешетку как две магнитные подсистемы с различными величинами магнитных параметров. Способность методов ФМР и СВР фиксировать двухфазность продемонстрирована в [14,16].…”

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Спин-волновой резонанс в синтетическом антиферромагнетике [(Co-=SUB=-0.88-=/SUB=-Fe-=SUB=-0.12-=/SUB=-)/Cu]-=SUB=-N-=/SUB=-

Vazhenina¹,

Исхаков²,

Миляев³

et al. 2020

Письма В Журнал Технической Физики

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The synthetic antiferromagnet [(Co0.88Fe0.12)/Cu]N which is planar composite with ~ 60 nm thickness was researched by the spin-wave resonance technique in all angles range of the applied constant magnetic field relative to normal to the film surface. Our researches demonstrate that studied multilayer film is magnetic superlattice the microwave spectrums of which demonstrate two different exchange-coupled magnetic systems. Every of these subsystems are showing itself as a series spin-wave modes on measured microwave spectrums. The dependence of magnitude of the propagation linear range of standing spin exchange wave on specimen orientation in applied magnetic field was discovered

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“…Estas propriedades são estabelecidas por meio do uso das curvas de magnetização. O campo H K é determinado experimentalmente e seu valor permite estimar a constante de anisotropia K u1 por meio da equação (1.11), assim como a anisotropia efetiva expressa como [38]:…”

Section: Paredes Tipo Néelunclassified

“…Para o caso particular das medidas de FMR, onde o experimento é realizado na configuração do campo aplicado paralelo à superfície do filme, a relação de dispersão se reduz a [6,38,59]:…”

Section: Ressonância Ferromagnética (Fmr)unclassified

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Análise das microestruturas magnéticas em filmes de FeNi

Castro¹

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The present work reports structural and magnetic study of FeNi polycrystalline films on Si substrates. X-ray dispersive energy measurements indicated relative concentrations of 64 % iron and 36 % nickel, which means that the films present Invar concentration, a phenomenon characterized by the decrease of the thermal expansion coefficient of the alloy to very low values. Experimental studies show that this phenomenon is strongly related to the magnetic structure of the alloys, but current theoretical models still cannot fully explain the relation between magnetic and mechanical characteristics of Invar alloys, motivating continued studies on their magnetic properties.In this research, the micromagnetic configuration for three FeNi films in Invar concentration and three different thicknesses (30, 70 and 140 nm) is analyzed according to their thicknesses. Experimental techniques such as SQUID magnetometry and Magnetic Force Microscopy (MFM) were used, as well as computer simulations, to offer more experimental bases that contribute to the understanding of the phenomena present in FeNi36 Invar alloys.Results revealed magnetic inhomogeneities caused by film polycrystallinity. The samples also showed a soft ferromagnetic behavior, with increasing saturation magnetizations and effective anisotropies with increasing thicknesses. Results also showed a great influence of shape anisotropy so that the films are easily magnetized in-plane.Finally, magnetometry measurements were complemented by micromagnetic structure mapping by Magnetic Force Microscopy, the resulting magnetic images were later simulated with the software MUMAX3. The maps revealed domains with local magnetizations parallel to the surface of the films, while the walls have a Bloch-like structure, mainly inside the thicker films. In this way, the anisotropy of the material defines an easy axis of magnetization in the plane of the films, because of the shape anisotropy, which forces the domain walls to distribute in the films, forming irregular zigzag like patterns on the surface.

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Magnetic properties of Ni81Fe19/W90Ti10 multilayers

Cited by 13 publications

References 23 publications

Bottom and top AF/FM interfaces of NiFe/FeMn/NiFe trilayers

Bottom and top AF/FM interfaces of NiFe/FeMn/NiFe trilayers

Спин-волновой резонанс в синтетическом антиферромагнетике [(Co-=SUB=-0.88-=/SUB=-Fe-=SUB=-0.12-=/SUB=-)/Cu]-=SUB=-N-=/SUB=-

Análise das microestruturas magnéticas em filmes de FeNi

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