Electromagnetic wave reflection loss and magnetic properties of M-type SrFe12?x(Mn0.5Sn0.5)xO19 hexagonal ferrite nanoparticles in the Ku microwave band |
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| Affiliation: | 1. Department of Electronics and Communication Engineering, Yadavindra College of Engineering, Punjabi University Guru Kashi Campus, Talwandi Sabo, Punjab, India;2. Department of Electronics and Communication Engineering, Rayat Bahra Institute of Engineering and Nanotechnology Hoshiarpur, Punjab, India;3. Department of Electronics Technology, Guru Nanak Dev University, Amritsar, Punjab, India;4. Department of Electronics and Communication Engineering, I.K.G. Punjab Technical University, Kapurthla, India;5. Department of Physics, University of Memphis, USA;6. Department of Physics, University school of sciences, Gujarat University, Navrangpura, Ahmedabad, Gujarat, India;7. Institute of Technology, Nirma University, Ahmedabad, Gujarat, India |
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| Abstract: | Ferrimagnetic nanoparticles of SrFe12?x(Mn0.5Sn0.5)xO19 was synthesis by controlling the effective processing parameters of sol-gel techniques. Microwave, magnetic properties and structure of nanosize, high purity sol-gel synthesized SrFe12?x(Mn0.5Sn0.5)xO19 hexaferrite ferrimagnetic nanoparticles were investigated by vector network analysis, vibrating sample magnetometry, EDS and XRD. 57Fe Mössbauer spectroscopy was employed to find the occupancy sites of incorporated cations. The position of manganese and tin in 12k sites caused reduction in coercivity and magnetization saturation. The values of coercivity and magnetization saturation show that superparamagnetism did not occur in the synthesized products. Results demonstrate that additions of manganese and tin to hexagonal ferrite enhance bandwidth and reflection loss. Such composition could be proposed as a suitable electromagnetic wave absorber in microwave frequencies. |
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| Keywords: | Magnetic ferrites Nanoparticles |
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