Magneto-optical investigation of Co-wedge/Pd-wedge sandwich

Shalyguina, E.E.; Pogrebnaya, I. A.; Shalyguina, O.A.; Shin, Kyung-Ho

doi:10.1109/20.801108

Cited by 7 publications

(9 citation statements)

References 22 publications

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“…13 One of the main features of magneto-optical effects is that they provide information only of a surface layer of the order of the light penetration depth in the material. For this reason, some of their best fields of application in the last decade are in the study of magnetic multilayers [14][15][16][17][18][19] and in surface magnetism. 20 In general, the magneto-optical response of a single magnetic layer is strongly dependent on the material electronic structure, light wavelength (), and on geometrical parameters such as the incidence angle or the layer thickness.…”

Section: Introductionmentioning

confidence: 99%

Magneto-optical transverse Kerr effect in multilayers

et al. 2001

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We present detailed theoretical and experimental analysis of the magneto-optic transverse Kerr effect in magnetic multilayers. The theoretical model is based upon a phenomenological permittivity tensor. From the general result, suitable only for numerical calculations, we derive several approximate analytical expressions in order to make a qualitative discussion. The theoretical predictions are compared with experimental results in Y/Co bilayers, and the good agreement found allows for an accurate determination of the magneto-optical constants of the material. Then, the theoretical model is applied to make a detailed study of interface magnetism in Y 1Ϫx Co x alloys, and to perform numerical simulations in Co/Cu and Fe/Cu multilayers. The results in multilayers highlight the complex behavior of the magneto-optic transverse Kerr effect, in which the contributions of the individual layers are never strictly additive. This nonlinearity is found to be strongly dependent on the 3d magnetic metal present and could be used to probe the alignment of the layers even in a configuration of vanishing magnetic moment.

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Section: Introductionmentioning

confidence: 99%

Magneto-optical transverse Kerr effect in multilayers

et al. 2001

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“…Essential for the nanofabrication is a 1 nm-thick Ti layer between YIG and the Co/Ni nanowires that acts as an adhesive during lift-off. The Ti layer should be thin enough to ensure a ferromagnetic-type interlayer exchange coupling [45]. In the P configuration, there should be no texture since the interlayer exchange favours P state.…”

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confidence: 99%

Strong Interlayer Magnon-Magnon Coupling in Magnetic Metal-Insulator Hybrid Nanostructures

et al. 2018

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We observe strong interlayer magnon-magnon coupling in an on-chip nanomagnonic device at room temperature. Ferromagnetic nanowire arrays are integrated on a 20-nm-thick yttrium iron garnet (YIG) thin film strip. Large anticrossing gaps up to 1.58 GHz are observed between the ferromagnetic resonance of the nanowires and the in-plane standing spin waves of the YIG film. Control experiments and simulations reveal that both the interlayer exchange coupling and the dynamical dipolar coupling contribute to the observed anticrossings. The coupling strength is tunable by the magnetic configuration, allowing the coherent control of magnonic devices.

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“…According to calculations, performed by K.A. Zvezdin in [15], and the experimental results [7][8][9][10][11][12][13][16][17][18][19] the two-step and almost rectangular hysteresis loops are observed for antiparallel and parallel orientations of magnetization components in Co layers. Thus, the obtained experimental data can be explained by the existence of exchange interaction between the FM layers through the Cu layer and it oscillating behavior with the change of t Cu (transition from the ferromagnetic (F) to the antiferromagnetic (AF) interaction).…”

Section: Resultsmentioning

confidence: 89%

“…A large number of experimental works are devoted to the study of the magnetic characteristics of multilayer (including a three-layer) thin-film systems. In particular, thin-film three-layer FM/NM/FM systems have been investigated in [3,[7][8][9][10][11][12][13], in which FM -Fe or Co, and NM  Ag, Au, Zr, Ta, Mo, Pt, Pd, Si, Bi, Cu. It was found that the values of saturation field, H S , oscillate with changing nonmagnetic layer thickness, and the period of these oscillations (except systems with Bi) of the order of 1.0-1.8 nm in the thickness range of FM up to 10 nm and NM up to 5 nm.…”

Section: Introductionmentioning

confidence: 99%

Structural and magnetic characteristics of the Co/Cu/Co thin-film systems

et al. 2018

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The results on investigation of structural and magnetic characteristics of Co/Cu/Co thin-film systems obtained by magnetron sputtering on glass substrates are presented. The thickness of Co layers in all samples is equal to 5 nm and the Cu layer is varied from 0.5 to 4 nm. It is found that the saturation field, HS, oscillates in magnitude with increasing Cu layer thickness with the period of the order of 1 nm. The maximum values of HS are observed for tCu = 1.4, 2.2 and 3.2 nm. The hysteresis loops measured for these samples in a magnetic field applied along the easy magnetization axis have a two-step form, and for other tCu – rectangular one. The obtained results are explained by the presence of exchange coupling between the ferromagnetic layers through a Co spacer and its oscillating behavior with changing tCu.

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Magneto-optical investigation of Co-wedge/Pd-wedge sandwich

Cited by 7 publications

References 22 publications

Magneto-optical transverse Kerr effect in multilayers

Magneto-optical transverse Kerr effect in multilayers

Strong Interlayer Magnon-Magnon Coupling in Magnetic Metal-Insulator Hybrid Nanostructures

Structural and magnetic characteristics of the Co/Cu/Co thin-film systems

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