• DocumentCode
    990493
  • Title

    On the nature of the microwave spectra and relaxation in conductive Fe4+-doped garnet films

  • Author

    Borghese, C. ; De Gasperis, P.

  • Author_Institution
    C.N.R., Roma, Italy
  • Volume
    18
  • Issue
    6
  • fYear
    1982
  • fDate
    11/1/1982 12:00:00 AM
  • Firstpage
    1624
  • Lastpage
    1626
  • Abstract
    The origin of the large magnetic relaxation effects at microwave frequencies observed in Fe4+-doped YIG films has been investigated in detail. Owing to the fairly high conductivity, eddy currents play a fundamental role in shaping the microwave spectra, leading to a superposition between a narrow magnetostatic mode series and a broad background signal. At the same time, eddy currents provide the largest contribution to the magnetic damping, giving rise to a characteristic linewidth angular dependence. Experimental results are in agreement with a simple model developed by means of a magnetostatic approach.
  • Keywords
    Relaxation processes; YIG films/devices; Damping; Eddy currents; Electrons; Equations; Frequency; Iron; Lattices; Magnetic resonance; Magnetostatic waves; Thermal conductivity;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.1982.1062043
  • Filename
    1062043
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=990493