Institutional Repository of Chinese Acad Sci, Inst Solid State Phys， Hefei 230031, Anhui, Peoples R China
| Multiferroic properties of Bi0.5K0.5TiO3-BiFe1-xCoxO3 (0 <= x <= 0.2) solid solution | |
Zuo, X. Z.1; Yang, J.1 ; Yuan, B.1; Kan, X. C.1; Zu, Lin1; Qin, Y. F.1; Zhu, X. B.1; Song, W. H.1; Sun, Y. P.1,2,3
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| 2015 | |
| 发表期刊 | RSC ADVANCES
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| 摘要 | The fabrication of BiFeO3 and Bi0.5K0.5TiO3 typically encounters problems with densification and phase purity, requiring conditions of high pressure for the synthesis of bulk phases. In this letter, we have successfully prepared a binary lead-free solid-solution of Bi0.5K0.5TiO3-BiFe1-xCoxO3 using a modified Pechini method and investigated the magnetic and ferroelectric properties of Bi0.5K0.5TiO3-BiFe1-xCoxO3 (0 <= x <= 0.2). The coexistence of room-temperature ferromagnetism and ferroelectricity is observed in Bi0.5K0.5TiO3-BiFe1-xCoxO3 (0.5 <= x <= 0.2). The x = 0.2 sample exhibits ferromagnetic behavior with a Curie temperature T-C of 661 K, compared with the paramagnetic like behavior exhibited in Bi0.5K0.5TiO3-BiFeO3 at room temperature. The ferromagnetism can be ascribed to the suppression of a spiral spin structure with the canting of the anti-ferromagnetically ordered spins caused by structural distortion due to the substitution of Co ions. The x = 0.2 sample also exhibits a well-defined ferroelectric hysteresis loop with a rather large remnant polarization (P-r = 32.72 mu C cm(-2)), which is superior to that of other lead-free ferroelectric compounds. The improved ferroelectric properties can be attributed to the increased grain size and lattice distortion caused by Co doping. The observation of room temperature ferromagnetism and ferroelectricity for Bi0.5K0.5TiO3-BiFe1-xCoxO3 suggests that these materials are potential candidates for multiferroic materials and ferroelectric memory devices. |
| 文章类型 | Article |
| WOS标题词 | Science & Technology ; Physical Sciences |
| DOI | 10.1039/c5ra19768f |
| 关键词[WOS] | THIN-FILM HETEROSTRUCTURES ; PIEZOELECTRIC PROPERTIES ; GEL METHOD ; CERAMICS ; BIFEO3 ; FERROELECTRICITY |
| 收录类别 | SCI |
| 语种 | 英语 |
| 项目资助者 | National Natural Science Foundation of China(10904150 ; National Natural Science Foundation of China(10904150 ; National Natural Science Foundation of China(10904150 ; National Natural Science Foundation of China(10904150 ; Anhui Provincial Natural Science Foundation(1208085MA06) ; Anhui Provincial Natural Science Foundation(1208085MA06) ; Anhui Provincial Natural Science Foundation(1208085MA06) ; Anhui Provincial Natural Science Foundation(1208085MA06) ; Joint Funds of the National Natural Science Foundation of China ; Joint Funds of the National Natural Science Foundation of China ; Joint Funds of the National Natural Science Foundation of China ; Joint Funds of the National Natural Science Foundation of China ; Chinese Academy of Sciences' Large-Scale Scientific Facility(U1232138 ; Chinese Academy of Sciences' Large-Scale Scientific Facility(U1232138 ; Chinese Academy of Sciences' Large-Scale Scientific Facility(U1232138 ; Chinese Academy of Sciences' Large-Scale Scientific Facility(U1232138 ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; 11274313) ; 11274313) ; 11274313) ; 11274313) ; U1232210) ; U1232210) ; U1232210) ; U1232210) |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Multidisciplinary |
| WOS记录号 | WOS:000366433700054 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.hfcas.ac.cn:8080/handle/334002/30200 |
| 专题 | 中科院固体物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China 2.Chinese Acad Sci, High Magnet Field Lab, Hefei 230031, Peoples R China 3.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zuo, X. Z.,Yang, J.,Yuan, B.,et al. Multiferroic properties of Bi0.5K0.5TiO3-BiFe1-xCoxO3 (0 <= x <= 0.2) solid solution[J]. RSC ADVANCES,2015,5(126):104210-104215. |
| APA | Zuo, X. Z..,Yang, J..,Yuan, B..,Kan, X. C..,Zu, Lin.,...&Sun, Y. P..(2015).Multiferroic properties of Bi0.5K0.5TiO3-BiFe1-xCoxO3 (0 <= x <= 0.2) solid solution.RSC ADVANCES,5(126),104210-104215. |
| MLA | Zuo, X. Z.,et al."Multiferroic properties of Bi0.5K0.5TiO3-BiFe1-xCoxO3 (0 <= x <= 0.2) solid solution".RSC ADVANCES 5.126(2015):104210-104215. |
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