Title :
Microwave properties and anisotropy field distribution in nanogranular Fe-Co-Al-O films
Author :
Pasquale, Massimo ; Coïsson, Marco ; Perero, Sergio ; Lim, Sang Ho
Author_Institution :
Mater. Dept., Ist. Elettrotecnico Nazionale Galileo Ferraris, Torino, Italy
Abstract :
We have investigated the microwave properties of a set of Co-Fe-Al-O films with different thicknesses. The films show a well-defined in-plane anisotropy due to the bias field applied during deposition. The resonance frequency is determined through the scattering parameters measured with a vector network analyzer and a probing station connected to a coplanar waveguide. The results show that the resonance peak features depend on the direction of the applied/RF field and on the applied field history.
Keywords :
S-parameters; coplanar waveguides; discontinuous metallic thin films; ferromagnetic resonance; iron compounds; magnetic anisotropy; magnetic thin films; network analysis; thin film inductors; Fe-Co-Al-O; anisotropy field distribution; coplanar waveguide; deposition; ferromagnetic resonance; magnetic thin films; microwave property; nanogranular films; probing station; resonance frequency; scattering parameters; vector network analyzer; Anisotropic magnetoresistance; Atomic force microscopy; Magnetic anisotropy; Magnetic field measurement; Magnetic films; Magnetic materials; Magnetic properties; Magnetic resonance; Perpendicular magnetic anisotropy; Saturation magnetization; Anisotropy; FeCo films; ferromagnetic resonance; magnetic thin films; microwave properties; nanogranular films;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2005.854744
