X-ray diffraction results for all the samples as indicated. The solid circles, squares, and triangles indicate the main peaks for the BSTO, the ferrite phase, and the Ti–O phase.
Average saturation magnetic induction as a function of ferrite loading . The data were obtained for an applied magnetic field of . The solid circles show the data for the composites. The solid square shows the value for the commercial TT2-111 ferrite. The solid line shows the linear response expected for an unmodified ferrite phase.
Average magnetic induction as a function of the applied magnetic field for the different ferrite loadings, as indicated. The inset shows an enlarged view for samples with loadings of , 6, and .
Saturation field , initial susceptibility , and coercive force as functions of ferrite loading . The solid circles in (a) show the saturation field data. The dashed line corresponds to , where is the value for the sample. The solid circles in (b) show the susceptibility parameter data. The solid line corresponds to and the dashed line corresponds to . The solid circles in (c) show the coercive force data.
Ferromagnetic resonance profiles at . The (a) graphs show the measured derivative of the absorbed power vs applied magnetic field profiles for the TT2-111, 100, 27, and samples, as indicated. The (b) graphs show the integrated profiles for the derivative profiles in (a).
Reduced cavity frequency shift as a function of the dispersion parameter for the different ferrite loadings, as indicated. The solid lines show linear fits to the different data sets. The inset shows the response slope parameter as a function of the ferrite loading . The solid circles in the inset show the slopes of line fits in the main graph, and the line shows the calculated theoretical response based on microwave perturbation theory.
Reduced sample loss parameter as a function of the absorption parameter , for the different loadings of the ferrite, as indicated. The inset shows the calculated effective linewidth as a function of ferrite loading .
Relative dielectric constant as a function of the ferrite loading . The solid circles show the data. The open circles show the data. The dashed curve is a calculation based on the Maxwell-Garnett model and the solid curve is a calculation based on the Lichtenecker model for inclusions in a dielectric matrix.
Loss tangent as a function of ferrite loading . The solid circles are the data at , whereas the open circles are the data at . The inset shows the low data on an expanded scale.
Normalized tunability as a function of ferrite loading . The open and solid circles show the data for electric field values of 2 and , respectively.
Summary of ferromagnetic resonance (FMR) and effective linewidth measurement results.
Summary of dielectric property measurements.
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