| Ferrimagnetism and abnormal spin lattice coupling in dilute magnetic ferroelectric (Bi0.46 Na0.46 Ba0.08)TiO3:Co |
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| 引用本文： | 范婧,董新伟,宋友,王克锋,刘俊明,江向平. Ferrimagnetism and abnormal spin lattice coupling in dilute magnetic ferroelectric (Bi0.46 Na0.46 Ba0.08)TiO3:Co[J]. 中国物理 B, 2011, 20(2): 27502-027502 |
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| 作者姓名： | 范婧 董新伟 宋友 王克锋 刘俊明 江向平 |
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| 作者单位： | Laboratory of Solid State Microstructures,Nanjing University International Center for Materials Physics,Chinese Academy of Sciences Department of Material Science and Engineering,Jingdezhen Ceramic Institute |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant Nos. 50832002 and 10874075), the National Basic Research Program of China (Grant Nos. 2009CB613303 and 2009CB929501), and the Natural Science Foundation of Jiangsu Province, China (Grant No. BK2008024). |
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| 摘 要： | We have investigated the low-temperature magnetism and spin-lattice coupling in (Bi 0.46 Na 0.46 Ba 0.08)TiO 3:Co in order to understand the magnetoelectric effect in such artificially synthesized dilute magnetic ferroelectrics.It is revealed that the as-prepared (Bi 0.46 Na 0.46 Ba 0.08)TiO 3:Co at Co content of 20%～30% exhibits fascinating ferrimagnetism which is robust against magnetic field,the abnormal spin-lattice coupling characterized by a negative magnetostriction effect;and the suppressed magnetic moment within the temperature range of 30 K～50 K is identified.These magnetic behaviours at low temperatures can be explained by the competition between the ferrimagnetic response and the magnetic moment suppression induced by the abnormal spin-lattice coupling effect.Finally,the ferroelectric and magnetodielectric properties are also discussed.
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| 关 键 词： | ferrimagnetics magnetostriction ferroelectricity |
| 收稿时间： | 2009-12-29 |
Ferrimagnetism and abnormal spin–lattice coupling in dilute magnetic ferroelectric (Bi0.46Na0.46Ba0.08)TiO3:Co |
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| Fan Jing,Dong Xin-Wei,Song You,Wang Ke-Feng,Liu Jun-Ming and Jiang Xiang-Ping. Ferrimagnetism and abnormal spin–lattice coupling in dilute magnetic ferroelectric (Bi0.46Na0.46Ba0.08)TiO3:Co[J]. Chinese Physics B, 2011, 20(2): 27502-027502 |
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| Authors: | Fan Jing Dong Xin-Wei Song You Wang Ke-Feng Liu Jun-Ming Jiang Xiang-Ping |
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| Affiliation: | Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China;Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China;Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China;Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China;Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China;Department of Material Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333001, China |
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| Abstract: | We have investigated the low-temperature magnetism and spin--lattice coupling in (Bi0.46Na0.46Ba0.08)TiO3:Co in order to understand the magnetoelectric effect in such artificially synthesized dilute magnetic ferroelectrics. It is revealed that the as-prepared (Bi0.46Na0.46Ba0.08)TiO3:Co at Co content of 20% ～ 30% exhibits fascinating ferrimagnetism which is robust against magnetic field, the abnormal spin--lattice coupling characterized by a negative magnetostriction effect; and the suppressed magnetic moment within the temperature range of 30 K ～ 50 K is identified. These magnetic behaviours at low temperatures can be explained by the competition between the ferrimagnetic response and the magnetic moment suppression induced by the abnormal spin--lattice coupling effect. Finally, the ferroelectric and magnetodielectric properties are also discussed. |
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| Keywords: | ferrimagnetics magnetostriction ferroelectricity |
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