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Precessional dynamics of thin films for ultrahigh frequency integrated magnetics
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10.1063/1.3276165
/content/aip/journal/jap/107/3/10.1063/1.3276165
http://aip.metastore.ingenta.com/content/aip/journal/jap/107/3/10.1063/1.3276165

Figures

Image of FIG. 1.
FIG. 1.

Film thickness determined using a dual beam FIB. From the bottom up, the film layers are Si, Ti, Cu, NiFe, and Pt (Pt was only deposited locally prior to FIB milling to ensure accurate layer thickness measurements).

Image of FIG. 2.
FIG. 2.

Hysteresis loop measurement for thin film sample as measured on SHB hysteresis loop tracer.

Image of FIG. 3.
FIG. 3.

Typical graph of relative complex permeability for a 9950 A/m bias field applied along the easy axis of the film.

Image of FIG. 4.
FIG. 4.

Schematic representation of the experimental setup in a commercial Ryowa PMM-9G1. The sample is slid into the detection coil (into the plane of the page) which is situated within the rf cavity which in turn is positioned within the center of a dc field coil. The field coil is one single coil and slides over the rf cavity and the sample after the sample is loaded.

Image of FIG. 5.
FIG. 5.

vs frequency for a range of bias fields applied along the film’s easy axis.

Image of FIG. 6.
FIG. 6.

vs frequency for a range of bias fields applied along the film’s easy axis.

Image of FIG. 7.
FIG. 7.

Graph showing square of FMR frequency vs applied bias field, squares and dots are from the measured values of and respectively, the solid line is the best fit line to the experimentally derived data points.

Image of FIG. 8.
FIG. 8.

Measured and simulated complex permeability spectra for 9947 A/m bias field applied.

Image of FIG. 9.
FIG. 9.

Measured and simulated complex permeability spectra for 13 925 A/m bias field applied.

Image of FIG. 10.
FIG. 10.

Measured and simulated complex permeability spectra for 17 904 A/m bias field applied.

Image of FIG. 11.
FIG. 11.

Effective dimensionless damping parameter plotted against applied bias field for the thin film, both experimentally derived and the theoretical critically damped values are shown.

Tables

Generic image for table
Table I.

thin film properties.

Generic image for table
Table II.

Experimentally determined -factors based on and .

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/content/aip/journal/jap/107/3/10.1063/1.3276165
2010-02-04
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Precessional dynamics of Ni45Fe55 thin films for ultrahigh frequency integrated magnetics
http://aip.metastore.ingenta.com/content/aip/journal/jap/107/3/10.1063/1.3276165
10.1063/1.3276165
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