Multiferroic properties of Bi0.5K0.5TiO3-BiFe1-xCoxO3 (0 <= x <= 0.2) solid solution

doi:10.1039/c5ra19768f

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 中科院固体物理研究所

	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, Lin 1; Qin, Y. F.1; Zhu, X. B.1; Song, W. H.1; Sun, Y. P.1,2,3
刊名	RSC ADVANCES
	2015
卷号	5 期号:126 页码:104210-104215
DOI	10.1039/c5ra19768f
文献子类	Article
英文摘要	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.
WOS关键词	THIN-FILM HETEROSTRUCTURES ; PIEZOELECTRIC PROPERTIES ; GEL METHOD ; CERAMICS ; BIFEO3 ; FERROELECTRICITY
WOS研究方向	Chemistry
语种	英语
WOS记录号	WOS:000366433700054
资助机构	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) ; 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)
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/30200]
专题	合肥物质科学研究院_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.