Superparamagnetism and spin-glass like state for the MnFe2O4 nano-particles synthesized by the thermal decomposition method
文献类型：期刊论文
| 作者 | R. R. Gao ; Y. Zhang ; W. Yu ; R. Xiong ; J. Shi |
| 刊名 | Journal of Magnetism and Magnetic Materials
 |
| 出版日期 | 2012 |
| 卷号 | 324期号:16页码:2534-2538 |
| 关键词 | MnFe2O4 nano-particle Superparamagnetism Spin-glass like state Thermal decomposition cofe2o4 nanoparticles magnetic-properties mfe2o4 m hydrothermal synthesis ferrite nanoparticles mn nanoparticles co dependence size fe |
| ISSN号 | 0304-8853 |
| 中文摘要 | MnFe2O4 nano-particles with an average size of about 7 nm were synthesized by the thermal decomposition method. Based on the magnetic hysteresis loops measured at different temperatures the temperature-dependent saturation magnetization (M-S) and coercivity (H-C) are determined. It is shown that above 20 K the temperature-dependence of the M-S and H-C indicates the magnetic behaviors in the single-domain nano-particles, while below 20 K, the change of the M-S and H-C indicates the freezing of the spin-glass like state on the surfaces. By measuring the magnetization-temperature (M-T) curves under the zero-field-cooling (ZFC) and field-cooling procedures at different applied fields, superparamagnetism behavior is also studied. Even though in the ZFC M-T curves peaks can be observed below 160 K, superparamagnetism does not appear until the temperature goes above 300 K, which is related with the strong inter-particle interaction. (C) 2012 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2013-02-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/59959]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | R. R. Gao,Y. Zhang,W. Yu,et al. Superparamagnetism and spin-glass like state for the MnFe2O4 nano-particles synthesized by the thermal decomposition method[J]. Journal of Magnetism and Magnetic Materials,2012,324(16):2534-2538. |
| APA | R. R. Gao,Y. Zhang,W. Yu,R. Xiong,&J. Shi.(2012).Superparamagnetism and spin-glass like state for the MnFe2O4 nano-particles synthesized by the thermal decomposition method.Journal of Magnetism and Magnetic Materials,324(16),2534-2538. |
| MLA | R. R. Gao,et al."Superparamagnetism and spin-glass like state for the MnFe2O4 nano-particles synthesized by the thermal decomposition method".Journal of Magnetism and Magnetic Materials 324.16(2012):2534-2538. |
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来源：金属研究所
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