Uniaxial anisotropy and novel magnetic behaviors of CoFe2O4 nanoparticles prepared in a magnetic field
文献类型：期刊论文
| 作者 | Gao Q ; Hong GY ; Ni JZ ; Wang WD ; Tang JK ; He JB |
| 刊名 | journal of applied physics
 |
| 出版日期 | 2009 |
| 卷号 | 105期号:7页码:文献编号：07a516 |
| 关键词 | COBALT-SUBSTITUTED MAGNETITE FERRITES HYSTERESIS |
| ISSN号 | 0021-8979 |
| 通讯作者 | gao q |
| 中文摘要 | cofe2o4 nanoparticles prepared by chemical coprecipitation method in a magnetic field exhibit novel magnetic properties. the average particle diameter was about 2 nm and larger depending on the post annealing temperature. magnetization measurements indicate that smaller nanoparticles are superparamagnetic above their respective blocking temperatures. in the blocked state, these nanoparticles exhibit interesting behaviors in the magnetic hysteresis measurements. constricted, or wasp waisted with extremely narrow waist, hysteresis curves have been observed in the magnetization versus field sweeps. for larger nanoparticles, the room temperature hysteresis is typical of a ferromagnet with an open loop, but the loop closes at lower temperature. the novel magnetic behavior is attributed to the directional order of co ions and vacancies in cofe2o4 established during the coprecipitation of the nanoparticles under an applied field. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000266633500163 |
| 公开日期 | 2010-05-27 |
| 源URL | [http://202.98.16.49/handle/322003/12309]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Gao Q,Hong GY,Ni JZ,et al. Uniaxial anisotropy and novel magnetic behaviors of CoFe2O4 nanoparticles prepared in a magnetic field[J]. journal of applied physics,2009,105(7):文献编号：07a516. |
| APA | Gao Q,Hong GY,Ni JZ,Wang WD,Tang JK,&He JB.(2009).Uniaxial anisotropy and novel magnetic behaviors of CoFe2O4 nanoparticles prepared in a magnetic field.journal of applied physics,105(7),文献编号：07a516. |
| MLA | Gao Q,et al."Uniaxial anisotropy and novel magnetic behaviors of CoFe2O4 nanoparticles prepared in a magnetic field".journal of applied physics 105.7(2009):文献编号：07a516. |
入库方式： OAI收割
来源：长春应用化学研究所
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