| Enhanced hyperthermia performance in hard-soft magnetic mixed Zn0.5CoxFe2.5−xO4/SiO2 composite magnetic nanoparticles |
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| 引用本文： | 俞翔,王利晨,李峥睿,米岩,吴迪安,贺淑莉.Enhanced hyperthermia performance in hard-soft magnetic mixed Zn0.5CoxFe2.5−xO4/SiO2 composite magnetic nanoparticles[J].中国物理 B,2021(3). |
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| 作者姓名： | 俞翔 王利晨 李峥睿 米岩 吴迪安 贺淑莉 |
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| 作者单位： | Department of Physics |
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| 基金项目： | Project supported by the National Natural Science Foundation of China(Grant Nos.51771124,51571146,and 51701130)。 |
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| 摘 要： | High quality Zn0.5CoxFe2.5?xO4(x=0,0.05,0.1,0.15)serial magnetic nanoparticles with single cubic structures were prepared by the modified thermal decomposition method,and Zn0.5CoxFe2.5?xO4/SiO2 composite magnetic nanoparticles were prepared by surface modification of SiO2.The magnetic anisotropy of the sample increases with the increase of the doping amount of Co2+.When the doping amount is 0.1,the sample shows the transition from superparamagnetism to ferrimagnetism at room temperature.In the Zn0.5CoxFe2.5?xO4/SiO2 serial samples,the maximum value of specific loss power(SLP)with 1974 W/gmetal can also be found at doping amount of x=0.1.The composite nanoparticles are expected to be an excellent candidate for clinical magnetic hyperthermia.
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| 关 键 词： | magnetic nanoparticles magnetic anisotropy Zn0.5CoxFe2.5?xO4/SiO2 magnetic hyperthermia |
Enhanced hyperthermia performance in hard-soft magnetic mixed Zn_(0.5)Co_xFe_(2.5-x)O_4/SiO_2 composite magnetic nanoparticles |
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| Xiang Yu,Li-Chen Wang,Zheng-Rui Li,Yan Mi,Di-An Wu,Shu-Li He.Enhanced hyperthermia performance in hard-soft magnetic mixed Zn_(0.5)Co_xFe_(2.5-x)O_4/SiO_2 composite magnetic nanoparticles[J].Chinese Physics B,2021(3). |
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| Authors: | Xiang Yu Li-Chen Wang Zheng-Rui Li Yan Mi Di-An Wu Shu-Li He |
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| Institution: | (Department of Physics,Capital Normal University,Beijing 100048,China) |
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| Abstract: | High quality Zn_(0.5) Co_x Fe_(2.5-x) O_4(x = 0, 0.05, 0.1, 0.15) serial magnetic nanoparticles with single cubic structures were prepared by the modified thermal decomposition method, and Zn_(0.5) Co_x Fe_(2.5-x) O_4/Si O_2 composite magnetic nanoparticles were prepared by surface modification of Si O_2. The magnetic anisotropy of the sample increases with the increase of the doping amount of Co~(2+). When the doping amount is 0.1, the sample shows the transition from superparamagnetism to ferrimagnetism at room temperature. In the Zn_(0.5) Co_x Fe_(2.5-x) O_4/Si O_2 serial samples, the maximum value of specific loss power(SLP) with 1974 W/gmetalcan also be found at doping amount of x = 0.1. The composite nanoparticles are expected to be an excellent candidate for clinical magnetic hyperthermia. |
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