| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Effect of Magnetic Anisotropy on Magnetic Thermal Induction of Mn$_{0.3}$Zn$_{0.3}$Co$_{x}$Fe$_{2.4-x}$O$_{4}$ Nanoparticles |
| Chen-Hui Lv1†, Li-Chen Wang1†, Zheng-Rui Li1, Xiang Yu1, Yan Mi1, Ruo-Shui Liu1, Kai Li2, Dan-Li Li2, Shu-Li He1** |
1Department of Physics, Capital Normal University, Beijing 100048
2Department of Chemistry, Capital Normal University, Beijing 100048
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| Cite this article: |
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Chen-Hui Lv, Li-Chen Wang, Zheng-Rui Li et al 2019 Chin. Phys. Lett. 36 037501 |
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Abstract Mn$_{0.3}$Zn$_{0.3}$Co$_{x}$Fe$_{2.4-x}$O$_{4}$ series magnetic nanoparticles are prepared by the high-temperature organic solvent method, and Mn$_{0.3}$Zn$_{0.3}$Co$_{x}$Fe$_{2.4-x}$O$_{4}$@SiO$_{2}$ composite nanoparticles are prepared by the reverse microemulsion method. The as-prepared samples are characterized, and the results show that the magnetic anisotropy constant of nanoparticles increases with the cobalt content, and the magnetic thermal induction shows a trend of increasing first and then decreasing. The optimal magnetic thermal induction is obtained at $x=0.12$ with a specific loss power of 2086 w/g$_{\rm metal}$, which is a bright prospect in clinical magnetic hyperthermia.
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Received: 21 December 2018
Published: 24 February 2019
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| PACS: |
75.50.Gg
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(Ferrimagnetics)
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75.60.Ej
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(Magnetization curves, hysteresis, Barkhausen and related effects)
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76.60.Es
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(Relaxation effects)
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| Fund: Supported by the National Natural Science Foundation of China under Grant Nos 51571146, 51771124 and 51701130. |
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