Ferromagnetic resonance in a series of alloys: II. Binary alloys of cobalt with platinum and palladium, and one iron-palladium alloy

Bagguley, D M S; Crossley, W. A.; Liesegang, J.

doi:10.1088/0370-1328/90/4/316

Cited by 36 publications

(11 citation statements)

References 23 publications

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“…in Tb seem to be explained by the frozen lattice model. In fact, 100 GHz microwave experiments in Dy might also be explained by the frozen lattice model (15) (16,17). The experimental data in this thesis for Tb at low fre quencies and temperatures below 140 K provide strong evidence in support of the theory of Vigren and Liu, supplying a satisfying resolution to the apparent contradictions which have existed for some time in the litera ture.…”

Section: B Theorysupporting

confidence: 58%

Microwave absorption in terbium, erbium and MnAu2 at selected frequencies from 20 - 120 GHz

Hart

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Section: B Theorysupporting

confidence: 58%

Microwave absorption in terbium, erbium and MnAu2 at selected frequencies from 20 - 120 GHz

Hart

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“…For the present Pd-rich alloy film, the T C is estimated to be ~560 K. 32 Such a low T C could lead to a weak long-range magnetic ordering of the Co atoms at room temperature. This effect could be attributable to the formation of CoPd alloy.…”

Section: Resultsmentioning

confidence: 88%

Magnetic anisotropic properties of Pd/Co/Pd trilayer films studied by X-ray absorption spectroscopy and magnetic circular dichroism

et al. 2015

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We study the magnetic anisotropic properties of as-grown and annealed Pd/Co/Pd trilayer films based on their atomic and electronic structures using extended x-ray absorption fine structure (EXAFS), x-ray absorption near edge structure (XANES) spectroscopy and magnetic circular dichroism (XMCD) measurements. The annealed film exhibits interesting perpendicular magnetic anisotropy (PMA) whereas as-grown film exhibits in-plane anisotropy. Cross-sectional transmission electron microscopic analysis together with the Co K-edge EXAF results confirm the formation of ordered-alloy CoPd phase in the annealed film, whereas the as-grown film has hcp Co-like phase. Co L 3,2 -edge XMCD measurements reveal an enhanced ratio of Co 3d orbital to spin moments of the annealed film providing evidence of the observed PMA upon annealing.

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“…Note that for the case of ͓Co͑0.27 nm͒/Pd͑0.8 nm͔͒ multilayers with a rather thin Co layer the formation of a Pd-rich Co-Pd alloy with a Curie temperature below 300 K is expected. 18,19 In this case, although the neighboring nanocaps are interconnected, the interface region possesses paramagnetic properties leading to strong exchange isolation of the neighboring nanocaps in the array. 12,13,16 However, this decoupling mechanism will weaken with increasing number of bilayers, in particular, when the total film thickness is in the range of half the particle diameter.…”

Section: Methodsmentioning

confidence: 99%

Effect of magnetic coupling on the magnetization reversal in arrays of magnetic nanocaps

et al. 2010

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Magnetic ͓Co/ Pd͔ N multilayers grown on assemblies of spherical polystyrene particles were used as a model system for studying the influence of magnetic coupling on the magnetization reversal by changing the size of the nanoparticles as well as the total thickness of the deposited magnetic film. The coercive field and the switching field distribution are found to be strongly dependent on the size of the nanocaps and on the total thickness of the magnetic layer, indicating a strong influence of the magnetic dipole-dipole interaction on the magnetization reversal of the entire array of nanocaps. Moreover, magnetic viscosity measurements allowed the estimation of the magnetic activation volume representing the effect of thermal activation on the switching process. It was found that the magnetic activation volume is substantially smaller compared to the volume of the nanocap and almost independent of the number of bilayers, and thus the total thickness of the nanocap, supporting an inhomogeneous magnetization reversal process.

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Ferromagnetic resonance in a series of alloys: II. Binary alloys of cobalt with platinum and palladium, and one iron-palladium alloy

Cited by 36 publications

References 23 publications

Microwave absorption in terbium, erbium and MnAu2 at selected frequencies from 20 - 120 GHz

Microwave absorption in terbium, erbium and MnAu2 at selected frequencies from 20 - 120 GHz

Magnetic anisotropic properties of Pd/Co/Pd trilayer films studied by X-ray absorption spectroscopy and magnetic circular dichroism

Effect of magnetic coupling on the magnetization reversal in arrays of magnetic nanocaps

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