Abstract
In-doped BaFe₁₁In1O₁₉ particles were prepared by a modified ceramic reaction using In2O₃, BaCo3, and Fe₂O₃ followed by mechanical dispersion. X-ray diffraction analysis confirmed the formation of pure BaFe₁₁In1O₁₉ phase and scanning electron micrographs showed platelet particles of about 1 μm in diameter. This powder was subsequently screen printed on alumina substrate using a suitable binder and oriented under a dc magnetic field of 15 kOe. The screen printed films were annealed at different durations to produce dense and thick ferrite materials. The hysteresis loops for the as-prepared and annealed screen printed, in-plane oriented films show a hysteresis squareness ratio (Mr/Ms) of 0.93, saturation magnetic moment of 4000 G, and coercivity of 634 Oe. The ferrimagnetic resonance measurements showed a linewidth (Δ H) ∽860 Oe. The g (Lande spectroscopic splitting factor) value deduced from the relation between resonant frequencies versus resonance field for the screen printed films was found to be 1.91.
Keywords
thick films, screen printed films, ferrimagnetic barium hexaferrite, microwave properties, basal plane oriented BaFe₁₁In1O₁₉ ferrite, In2O₃, BaCo3, Fe₂O₃, X-ray diffraction analysis, hysteresis loops, squareness ratio, saturation magnetic moment, ferrimagnetic resonance measurements
Subject Categories
Thick films, Screen process printing, Magnetic properties
Disciplines
Electromagnetics and photonics
Publisher
American Institute of Physics
Publication Date
4-1-2008
Rights Information
Copyright 2008 American Institute of Physics.
Rights Holder
American Institute of Physics
Permanent URL
Recommended Citation
Chinnasamy, C. N.; Sakai, T.; Sivasubramanian, S.; Yang, Aria F.; Vittoria, C.; and Harris, V. G., "Magnetic and microwave properties of basal-plane oriented BaFe₁₁In1O₁₉ ferrite thick films processed by screen printing" (2008). Electrical and Computer Engineering Faculty Publications. Paper 70. http://hdl.handle.net/2047/d20002241
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magnetic_and_microwave_properties_fig1.zip (20 kB)Figure 1
magnetic_and_microwave_properties_fig2.zip (1556 kB)
Figure 2
magnetic_and_microwave_properties_fig3.zip (2444 kB)
Figure 3
magnetic_and_microwave_properties_fig4.zip (31 kB)
Figure 4
magnetic_and_microwave_properties_fig5.zip (13 kB)
Figure 5
Notes
Originally published in Journal of Applied Physics 103, 07F710 (2008). DOI:10.1063/1.2829905 (http://dx.doi.org/10.1063/1.2829905).