FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Radiation Losses in the Microwave X Band in Al-Cr Substituted Y-Type Hexaferrites |
D. Basandrai1,2, R. K. Bedi3, A. Dhami2, J. Sharma2, S. B. Narang4, K. Pubby4, A. K. Srivastava2** |
1Research Scholar, Department of Physics, I. K. Gujral Punjab Technical University, Jalandhar, India 2Department of Physics, Lovely Professional University, Phagwara, India 3Principal, Satyam Institute of Engineering & Technology, Amritsar, India 4Department of Electronic Technology, Guru Nanak Dev University, Amritsar, India
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Cite this article: |
D. Basandrai, R. K. Bedi, A. Dhami et al 2017 Chin. Phys. Lett. 34 044101 |
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Abstract We present a study on radiation losses in the microwave X band in Al-Cr substituted Y-type hexaferrites, namely Ba$_2$Mg$_2$Al$_{x/2}$Cr$_{x/2}$Fe$_{12-x}$O$_{22}$ ($x=0$, 0.5 and 1.0). The study is performed by means of a vector network analyzer, Fourier transform infrared spectroscopy, a vibrating sample magnetometer and x-ray powder diffraction. Ba$_2$Mg$_2$Fe$_{12}$O$_{22}$ hexaferrite shows radiation loss of $-$37.25 dB (99.999% loss) at frequency 9.81 GHz, which can be attributed to its high value of saturation magnetization, i.e., 22.08 emu/g. Moreover, we obtain that magnetic properties have strong influence on the radiation losses.
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Received: 06 January 2017
Published: 21 March 2017
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PACS: |
41.20.Gz
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(Magnetostatics; magnetic shielding, magnetic induction, boundary-value problems)
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41.20.Jb
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(Electromagnetic wave propagation; radiowave propagation)
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47.54.Jk
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(Materials science applications)
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