• DocumentCode
    68618
  • Title

    Nanogranular (FeCoTiO/SiO2)n Multilayered Films for Noise Suppressor

  • Author

    Yicheng Wang ; Huaiwu Zhang ; Luo Wang ; Zhiyong Zhong ; Feiming Bai

  • Author_Institution
    State Key Lab. of Electron. Thin Films & Integrated Devices, Univ. of Electron. Sci. & Technol., Chengdu, China
  • Volume
    50
  • Issue
    11
  • fYear
    2014
  • fDate
    Nov. 2014
  • Firstpage
    1
  • Lastpage
    4
  • Abstract
    Magnetic nanogranular FeCoTiO films have been deposited by radio frequency magnetron cosputtering. By simply adjusting the thickness of films, the imaginary permeability spectrum of FeCoTiO films changed from a single ferromagnetic resonance peak to double resonance peaks. Based on this phenomenon, multilayered [FeCoTiO/SiO2(50 nm)]n films with various thickness of FeCoTiO layer were deposited and the characteristics of the electromagnetic noise suppression have been evaluated using an integrated coplanar waveguide transmission line. The multilayered film shows a decoupled M-H curve and a very wide resonance peak with the full-width at half-maximum of 2.6 GHz. The absorption attenuation amplitude reaches to -8 dB at the resonance frequency, and is better than -6 dB for the frequency above 3 GHz.
  • Keywords
    cobalt compounds; coplanar transmission lines; coplanar waveguides; ferromagnetic materials; ferromagnetic resonance; granular materials; iron compounds; magnetic multilayers; magnetic noise; magnetic permeability; magnetic thin films; nanostructured materials; silicon compounds; sputter deposition; FeCoTiO-SiO2; absorption attenuation amplitude; decoupled M-H curve; double resonance peaks; electromagnetic noise suppression; film thickness; imaginary permeability spectrum; integrated coplanar waveguide transmission line; magnetic nanogranular films; nanogranular multilayered films; radio frequency magnetron cosputtering; single ferromagnetic resonance; size 50 nm; Magnetic multilayers; Magnetic resonance; Magnetic resonance imaging; Noise; Permeability; Perpendicular magnetic anisotropy; Coplanar waveguide (CPW); electromagnetic interference; ferromagnetic resonance (FMR); nanogranular films;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.2014.2326868
  • Filename
    6971379
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=68618