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Broadband complex permeability characterization of magnetic thin films using shorted microstrip transmission-line perturbation
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10.1063/1.1935429
/content/aip/journal/rsi/76/6/10.1063/1.1935429
http://aip.metastore.ingenta.com/content/aip/journal/rsi/76/6/10.1063/1.1935429
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Microstrip circuits for characterization of magnetic thin films. (a) Transmission approach and (b) reflection approach.

Image of FIG. 2.
FIG. 2.

Electric field (solid line) and magnetic field (dashed line) distribution at the cross section of the region with the magnetic thin film sample.

Image of FIG. 3.
FIG. 3.

Cross section of the microstrip circuit (a) loaded with substrate without thin film and (b) loaded with substrate coated with thin film.

Image of FIG. 4.
FIG. 4.

Shorted microstrp line fixture loaded with a magnetic thin film coated on a dielectric substrate. (a) Photograph and (b) schematic diagram.

Image of FIG. 5.
FIG. 5.

Magnetic field distributions of the fixture at 4 GHz. (a) Empty fixture. (b) Fixture loaded with a dielectric substrate without magnetic thin film. (c) Fixture loaded with a dielectric substrate coated with magnetic thin film with zero conductivity. (d) Fixture loaded with a dielectric substrate coated with magnetic thin film with conductivity

Image of FIG. 6.
FIG. 6.

Magnetization curves of the FeTaN thin film.

Image of FIG. 7.
FIG. 7.

Effective parameters of the microstrip line of the fixture at different states. (a) Effective permittivity of the empty fixture. (b) Effective permittivity of the fixture loaded with substrate without film. (c) Effective permeability of the fixture loaded with film coated on substrate.

Image of FIG. 8.
FIG. 8.

Permeability spectrum of the magnetic thin film. (a) Theoretical results following Landau–Lifchitz–Gilbert equations. (b) Measurement results based on calibration with substrate without thin film. (c) Measurement results based on calibration with saturation magnetization.

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/content/aip/journal/rsi/76/6/10.1063/1.1935429
2005-06-07
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Broadband complex permeability characterization of magnetic thin films using shorted microstrip transmission-line perturbation
http://aip.metastore.ingenta.com/content/aip/journal/rsi/76/6/10.1063/1.1935429
10.1063/1.1935429
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