Spin-Wave Excitations in Evaporated Co/Pt Multilayers

Salhi, H.; Chafai, K.; Msieh, O.; Lassri, H.; Benkirane, Karim; Abid, M.; Bessaïs, L.; Hlil, E.K.

doi:10.1007/s10948-010-0835-4

Cited by 9 publications

(2 citation statements)

References 27 publications

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“…1. The presence of even and odd spin wave resonance (SWR) modes implies an inhomogeneous distribution of magnetization perpendicular to the film plane, and an asymmetrical spin pinning at the two surfaces and interfaces of the Ni 81 Fe 19 layer [14,15].…”

Section: Resultsmentioning

confidence: 99%

Magnetic Properties and Electronic Structure of Ni81Fe19/Zr Multilayer Films

Yamkane¹,

Lassri²,

Omari³

et al. 2012

J Supercond Nov Magn

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Magnetic properties of NiFe/Zr multilayer films, prepared by DC magnetron sputtering, have been studied by vibrating sample magnetometer and ferromagnetic resonance (FMR). Spin-wave resonances were observed in Ni 81 Fe 19 /Zr multilayer films in FMR experiments, and the spin wave was found to be sustained by both the whole films. Estimated small interlayer coupling constant shows weak exchange coupling effect between NiFe layers across Zr spacers. The FMR linewidth, in parallel geometry, of the uniform mode was found to increase with decreasing NiFe thickness (20 Å ≤ t NiFe ≤ 120 Å) indicating that it corresponds to an interfacial effect. In addition, electronic and magnetic properties of multilayers are investigated by selfconsistent ab initio calculations based on Korringa-KohnRostocker (KKR). Spin polarized within the framework of the Coherent Potential Approximation (CPA) is considered for calculations.

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Section: Resultsmentioning

confidence: 99%

Magnetic Properties and Electronic Structure of Ni81Fe19/Zr Multilayer Films

Yamkane¹,

Lassri²,

Omari³

et al. 2012

J Supercond Nov Magn

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“…Magnetic thin film systems are of particular importance due to their rich magnetism physics and practical applications in magnetic recording industry; it includes systems of single magnetic films, double magnetic films, and multiple layered magnetic films composed by ferromagnetic (FM), antiferromagnetic (AFM), and nonmagnetic (NM) films of different thickness and layer arrangements, among which FM/NM multilayers gained a long-term interest in the last decade. Many theoretical and experimental works were devoted to this field in understanding its magnetic behaviors especially for the perpendicular magnetic anisotropy thin films [3][4][5][6][7] through different approaches like neutron scattering, ferromagnetic resonance, magneto-optical Kerr microscopy, and Brillouin scattering. Generally, external magnetic fields were applied perpendicular to the sample surface in PMA samples in various experimental methods mentioned above.…”

Section: Introductionmentioning

confidence: 99%

Spin Waves Excitations of Co/Pt Multilayers

Zhou

2012

Journal of Nanomaterials

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The present work investigated interlayer couplings of [Co(20 Å)/Pt(30 Å)]5, [Co(4 Å)/Pt(7 Å)]30, and [Co(4 Å)/Pt(9 Å)]30multilayers with strong perpendicular magnetic anisotropy (PMA). Brillouin light scattering measurements were utilized to obtain spin waves of these samples with in-plane external magnetic fields. Interlayer couplings were found to be very sensitive to Pt thickness change from 7 Å to 9 Å, which implies that Pt atoms were more difficult to be polarized to provide interlayer coupling between Co layers than in the perpendicular external magnetic field situation. When Pt layer is 30 Å, the observed single spin wave can confirm the disappearance of interlayer coupling even when Co layer thickness is 20 Å.

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