| La0.55Eu0.1Sr0.15Na0.2MnO3的制备及其磁性 |
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| 引用本文： | 冯明,李娜,徐仕翀,李海波.La0.55Eu0.1Sr0.15Na0.2MnO3的制备及其磁性[J].吉林大学学报(理学版),2008,46(4):747-750. |
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| 作者姓名： | 冯明 李娜 徐仕翀 李海波 |
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| 作者单位： | 吉林师范大学 凝聚态物理与材料科学研究所, 吉林 四平 136000 |
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| 摘 要： | 采用溶胶\|凝胶方法制备钙钛矿型稀土锰氧化物La0.55Eu0.1Sr0.15Na0.2MnO3, 利用X射线衍射(XRD)、 振动样品磁强计(VSM)和磁性测量系统(MPMS)对样品的结构、 居里温度、 磁卡效应和磁电阻效应进行研究. 结果表明, 样品具有单相六角钙钛矿结构, 居里温度为310 K, 磁电阻变化率为11.18％, 最大磁熵变为1.45 J/(kg·K).
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| 关 键 词： | 锰氧化物 居里温度 磁熵变 磁电阻 |
| 收稿时间： | 2007-08-04 |
Preparation and Magnetic Properties of La0.55Eu0.1Sr0.15Na0.2MnO3 |
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| FENG Ming,LI Na,XU Shi chong,LI Hai bo.Preparation and Magnetic Properties of La0.55Eu0.1Sr0.15Na0.2MnO3[J].Journal of Jilin University: Sci Ed,2008,46(4):747-750. |
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| Authors: | FENG Ming LI Na XU Shi chong LI Hai bo |
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| Institution: | Institute of Condensed Matter Physics and Materials Science, Jilin Normal University, Siping 136000, Jilin Province, China |
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| Abstract: | Perovskite\|type manganites La0.55Eu0.1Sr0.15Na0.2MnO3 were prepared by sol\|gel method. The structure, Curie temperature, magnetocalorie effect, and magnetoresistive effect of the sample were investigated by XRD, VSM, and MPMS. The results show that this material is a single\|phase structure of hexagonal perovskite without other mixed-phases, and the Curie temperature is 310 K. It is found that its magnetoresistance reaches 11.18％, and the maximum magnetic entropy change (ΔSM) reaches a value of 1.45 J/(kg·K) for La0.55Eu0.1Sr0.15Na0.2MnO3. |
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| Keywords: | manganite Curie temperature magnetic entropy change magnetoresistance |
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