| Additional transition induced by magnetoelectric interaction in ferroelectromagnet Pb（Fe1/2Nb1/2）O3 |
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| 引用本文： | 杨颖,黄红波,沈鸿烈,刘俊明,刘治国.Additional transition induced by magnetoelectric interaction in ferroelectromagnet Pb（Fe1/2Nb1/2）O3[J].中国有色金属学会会刊,2006,16(1):117-121. |
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| 作者姓名： | 杨颖 黄红波 沈鸿烈 刘俊明 刘治国 |
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| 作者单位： | [1]College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China [2]Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, China |
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| 基金项目： | Foundation item： Projects（50572038; 10374048） supported by the National Natural Science Foundation of China |
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| 摘 要： | Besides the two phase transitions known in ferroelectromagnets, an additional transition was observed experimentally in Pb（Fe1/2Nb1/2）O3 and the possible mechanism was explored. The magnetic moment shows that anomalous increases when the temperature goes down away from the Neel temperature of 20-30 K. The existence of the hysteresis verifies the weak ferromagnetic property. This additional phase transition is considered to originate from the magnetoelectric coupling between the ferroelectric and antiferromagnetic orders in this compound. From the Moessbauer parameter analysis, it is confirmed that the hybridization of the O 2p, Fe 3d and Nb 4d electron states makes the realization of magnetoelectric coupling possible.
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| 关 键 词： | Pb（Fe1/2Nb1/2）O3 磁电耦合 轨道杂化 磁电交互作用 铁电材料 |
| 收稿时间： | 2005-06-14 |
| 修稿时间： | 2005-10-20 |
Additional transition induced by magnetoelectric interaction in ferroelectromagnet Pb(Fe1/2Nb1/2)O3 |
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| Ying YANG, Hong-bo HUANG, Hong-lie SHEN, Jun-ming LIU,Zhi-guo LIU.Additional transition induced by magnetoelectric interaction in ferroelectromagnet Pb(Fe1/2Nb1/2)O3[J].Transactions of Nonferrous Metals Society of China,2006,16(1):117-121. |
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| Authors: | Ying YANG Hong-bo HUANG Hong-lie SHEN Jun-ming LIU Zhi-guo LIU |
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| Affiliation: | aCollege of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;bNanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, China |
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| Abstract: | |
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| Keywords: | Pb(Fe1/2Nb1/2)O3 ferroelectromagnet magnetoelectric coupling magnetoelectric interaction orbital hybridization |
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