Magnetic properties of Ni81Fe19/W90Ti10 multilayers

نویسندگان

  • M. A. Morales
  • H. Lassri
  • A. Biondo
  • A. M. Rossi
  • E. Baggio-Saitovitch
چکیده

The magnetization and anisotropy of Ni81Fe19/W90Ti10 multilayers prepared by DC sputtering are presented. At high-angle X-ray diffraction, weak superlattice peaks appear around the NiFe (1 1 1) diffraction line, which indicate a fiber texture /1 1 1S for NiFe. The magnetization decreases with NiFe layer thickness tNiFe and the analysis of the results at 300K indicates the presence of 6 ( A thick dead Ni81Fe19 layer. The ferromagnetic resonance (FMR) spectra are obtained with the applied magnetic field parallel and perpendicular to the film plane at 300K. Complicated spin-wave resonance spectra were observed and analyzed. From FMR, a negative value for Ni81Fe19/W90Ti10 interface anisotropy is obtained. r 2002 Elsevier Science B.V. All rights reserved.

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تاریخ انتشار 2002