Enhanced efficiency C-axis textured M-type barium ferrite for realization of self-biased circulators
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This paper presents the synthesis and realization of the C-axis textured M-type barium ferrite BaScxFe12−xO19 (x = 0.1, 0.3, 0.6, 0.8, 1.0) using the solid-state method. Among this samples, the BaScxFe12−xO19 with x = 0.1 ferrite exhibits preferable magnetic properties with the saturation magnetization of ~ 4700 Gauss and squareness ratio of 0.65, which is suited for the realization of self-biased circulator design. Results of the SEM reveal that the Sc3+ has negligible effect on the crystal morphology. The measured results for the vibrating sample magnetometer indicate that increasing x of the induced Sc3+ yields decreasing the magneto-crystalline anisotropy field, saturation magnetization, coercivity, and reduces the squareness ratio. Besides, influence of Sc3+ on dielectric constant also have be investigated.
This work is supported by NSFC, No. 61671118 and No. 61371053, and also be supported by the National Key Research and Development Plan, 2016YFA0300801, International Science and Technology Cooperation program, 2012DFR10730.
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