Pacific Rim Symposium on Surfaces, Coatings and Interfaces (PacSurf 2014)
    Thin Films Wednesday Sessions
       Session TF-WeE

Paper TF-WeE1
Static and Dynamic Magnetic Properties in FeCoN Thin Films Deposited Under Various Deposition Powers

Wednesday, December 10, 2014, 5:40 pm, Room Makai

Session: Thin Film Synthesis and Characterization III
Presenter: Yuping Wu, National university of singapore
Authors: Y.P. Wu, National university of singapore
Z.H. Yang, National universisity of Singapore
F.S. Ma, National University of Singapore
B.Y. Zong, National University of Singapore
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In this work, we deposited FeCoN thin films by reactive magnetron sputtering. The applied deposition power was changed from 150 W to 1000 W. The dynamic magnetic properties were measured with the shorted microstrip transmission-line perturbation method, which was developed in our lab. The damping coefficient was estimated by analyzing the measured permeability spectra based on Landau-Lifshitz-Gilbert (LLG) equation. Both the static magnetic properties and the damping coefficient in the magnetization dynamics can be conveniently and effectively tuned by varying the sputtering deposition power, which results in controllable and modified dynamic magnetic properties. The physical origin of the influences is related to the changed deposition rate, which is a critical factor determining the microstructure of films.