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Microstructural, magnetic and dielectric performance of rare earth ion (Sm3+)-doped MgCd ferrites |
| Dandan Wen(文丹丹)1,2,3,†, Xia Chen(陈霞)3, Dasen Luo(骆大森)3, Yi Lu(卢毅)1, Yixin Chen(陈一鑫)3, Renpu Li(黎人溥)1, and Wei Cui(崔巍)3,‡ |
1 Doctoral Research Station of Chongqing Key Laboratory of Optoelectronic Information Sensing and Transmission Technology, Chongqing University of Post and Telecommunications, Chongqing 400065, China;
2 State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China;
3 Chongqing Key Laboratory of Autonomous Navigation and Microsystem, Chongqing University of Post and Telecommunications, Chongqing 400065, China |
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Abstract The combined effects of Sm$^{3+}$ substitution together with the addition of 3 wt% Bi$_{2}$O$_{3}$ endow MgCd ferrites with excellent magnetic permeability and dielectric permittivity. Various concentrations of Sm$^{3+}$ ($x = 0$, 0.03, 0.06, 0.09, 0.12 and 0.15) were employed to modify the permeability ($\mu'$) and permittivity ($\varepsilon'$) of the MgCd ferrites. X-ray diffraction, scanning electron microscopy (SEM), vibrating sample magnetometry and vector network analysis techniques were used to characterize the samples. The measurement results reveal that the ferrites processed a saturation magnetization of up to 36.8 emu/g and coercivity of up to 29.2 Oe via the conventional solid-state reaction method. The surface morphology SEM confirms that with increasing Sm$^{3+}$ concentration, the grain shape changes from a polygon to a circle. Moreover, the dielectric permittivity can reach a value of 23. The excellent properties obtained in Sm$^{3+}$-substituted Mg ferrites suggest that they could be promising candidates for modern high-frequency antenna substrates or multilayer devices.
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Received: 08 September 2021
Revised: 04 November 2021
Accepted manuscript online: 15 November 2021
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PACS:
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85.70.Ge
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(Ferrite and garnet devices)
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81.40.-z
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(Treatment of materials and its effects on microstructure, nanostructure, And properties)
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| Fund: Project supported by the National Key Research and Development Program of China (Grant No. 2018YFE0115500), the National Natural Science Foundation of China (Grant Nos. 51902037 and 62005033), the Open Foundation of State Key Laboratory of Electronic Thin Films and Integrated Devices (Grant No. KFJJ201912), the Science and Technology Project Affiliated to the Education Department of Chongqing Municipality (Grant No. KJQN201900615), and the Nature Science Foundation of Chongqing (Grant No. cstc2019jcyjmsxmX0696). |
Corresponding Authors:
Dandan Wen, Wei Cui
E-mail: wendd@cqupt.edu.cn;cuiwei@cqupt.edu.cn
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Cite this article:
Dandan Wen(文丹丹), Xia Chen(陈霞), Dasen Luo(骆大森), Yi Lu(卢毅),Yixin Chen(陈一鑫), Renpu Li(黎人溥), and Wei Cui(崔巍) Microstructural, magnetic and dielectric performance of rare earth ion (Sm3+)-doped MgCd ferrites 2022 Chin. Phys. B 31 078503
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