Brillouin light scattering and ferromagnetic resonance in sputtered NiFe/Cu/NiFe thin films
- 15 April 1997
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 81 (8) , 4770-4772
- https://doi.org/10.1063/1.365459
Abstract
The spin-wave spectra of Ni 81 Fe 19 (t)/ Cu(25 Å)/Ni 81 Fe 19 (t) with t=200 and 300 Å are investigated by means of Brillouinlight scattering and ferromagnetic resonance. Samples grown on three different substrates, namely, MgO(100), MgO(110), and sapphire(0001), exhibit clear-cut volume and surface modes. Sharp linewidths are signatures of the excellent quality of the samples. Angle-dependent measurements reveal that, while the samples grown on MgO(100) and sapphire(0001) are nearly isotropic, a surprisingly large in-plane uniaxial anisotropy is a characteristic feature of the samples grown on MgO(110). Quantitative agreement between theoretical and experimental results is reported for a realistic set of the samples’ parameters.This publication has 6 references indexed in Scilit:
- Biquadratic Exchange Coupling in Sputtered (100) Fe/Cr/FePhysical Review Letters, 1996
- Preparation of Ni–Fe/Cu multilayers with low coercivity and GMR effect by ion beam sputteringJournal of Applied Physics, 1994
- The absence of giant magnetoresistance on antiferromagnetically coupled NiFe/Cr multilayersJournal of Applied Physics, 1993
- Dramatic enhancement of interlayer exchange coupling and giant magnetoresistance in Ni81Fe19/Cu multilayers by addition of thin Co interface layersApplied Physics Letters, 1992
- Oscillations in giant magnetoresistance and antiferromagnetic coupling in [Ni81Fe19/Cu]N multilayersApplied Physics Letters, 1992
- Effect of interlayer exchange coupling on spin-wave spectra in magnetic double layers: Theory and experimentPhysical Review B, 1989