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No.3(pp.119-150)

Home > Issues > Volume 11 (2006) > No.3(pp.119-150)

RF Characterizations of Patterned CoNbZr Magnetic Thin Film on Transmission Line

Journal of Magnetics, Volume 11, Number 3, 30 Sep 2006, Pages 130-134

Ki-Hyeon Kim*

(Department of Physics, Yeungnam University)

Abstract

The microwave power absorption for the patterned CoNbZr magnetic film has been investigated by coplanar waveguide method. The power absorption peaks of the patterned CoNbZr film (50 µm× 2 mm × 2 µm),were observed at around 5.7 GHz. The observed resonance peak was in good agreement with calculated ferromagnetic resonance frequency including magnetic shape anisotropy effects. Compared with the coplanar waveguide without a magnetic film, the characteristic impedance of patterned film was shown to be increased. This resulted from the large increment of inductance up to 33 % without any significant changes of the capacitance.

Keywords: ferromagnetic resonance; patterned magnetic film; coplanar waveguide; propagation constant; noise suppression; wavelength shortening; scattering parameter; relative permeability

DOI:

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