Eu离子掺杂BiFeO3的多铁性及Raman谱研究

材料导报, 2013, 27(24): 1-3.

Eu离子掺杂BiFeO3的多铁性及Raman谱研究

李永涛 ^1, , 滕晓雪 ^2, , 汪帅 ^3, , 李坤芳 ^4, , 方婷 ^5, , 李兴鳌 ^6,

1.南京邮电大学理学院,南京210046

2.南京邮电大学通信与信息工程学院,南京210046

3.南京邮电大学理学院,南京210046

4.南京邮电大学理学院,南京210046

5.南京邮电大学理学院,南京210046

6.南京邮电大学理学院,南京210046

基金项目: 南京邮电大学科研项目(NY212099) 国家自然科学基金(51172110) 江苏省自然科学基金(BK2010525) 大学生创新创业训练计划支持

关键词：多铁性材料 , 铁电性 , 磁性 , 拉曼谱

Studies of Multiferroics and Raman Spectra for Eu-doped BiFeO3

LI Yongtao ^1, , TENG Xiaoxue ^2, , WANG Shuai ^3, , LI Kunfang ^4, , FANG Ting ^5, , LI Xing'ao ^6,

1.南京邮电大学理学院,南京210046

2.南京邮电大学通信与信息工程学院,南京210046

3.南京邮电大学理学院,南京210046

4.南京邮电大学理学院,南京210046

5.南京邮电大学理学院,南京210046

6.南京邮电大学理学院,南京210046

Keywords： multiferroic material , ferroelectricity , magnetic property , Raman spectra

利用溶胶-凝胶法成功制备了BiFeO3和Bi0.95Eu0.05 FeO3粉末样品,并讨论了温度和Bi离子的含量对样品制备的影响.铁电性和磁性测量显示:与BiFeO3样品相比,稀土(Eu)离子掺杂的BiFeO3样品的磁性和铁电性有很大提高.Raman谱数据分析得出,Eu离子掺杂引起了BiFeO3样品的局域结构的改变.Eu离子掺杂促使BiFeO3样品的磁性提高归因于局域结构改变导致了BiFeO3样品中的自旋轮摆结构的破坏,最终使样品的磁性提高.

参考文献

[1]	Eerenstein W;Mathur ND;Scott JF .Multiferroic and magnetoelectric materials[J].Nature,2006(7104):759-765.
[2]	Cheong SW;Mostovoy M .Multiferroics: a magnetic twist for ferroelectricity[J].Nature materials,2007(1):13-20.
[3]	Tokura Y .Multiferroics-toward strong coupling between magnetization and polarization in a solid[J].Journal of Magnetism and Magnetic Materials,2007,310(02):1145.
[4]	Wang J;Neaton J B;Zheng H et al.Epitaxial BiFeO3 multiferroic thin film heterostructures[J].SCIENCE,2003,299(5613):1719.
[5]	Wang, K.F.;Liu, J.-M.;Ren, Z.F. .Multiferroicity: The coupling between magnetic and polarization orders[J].Advances in physics,2009(4):321-448.
[6]	Kadomtseva AM;Zvezdin AK;Popov YF;Pyatakov AP;Vorob'ev GP .Space-time parity violation and magnetoelectric interactions in antiferromagnets[J].JETP Letters,2004(11):571-581.
[7]	Ruette B;Zvyagin S;Pyatakov A P et al.Magnetic-fieldinduced phase transition in BiFeO3 observed by cycloidal to homogeneous spin order high-field electron spin resonance:Cycloidal to homogeneous spin order[J].Physical Review B:Condensed Matter,2004,69(06):064114.
[8]	Wang N;Cheng J;Pyatakov A et al.Multiferroic properties of modified BiFeC3-PbTiO3-based ceramics:Random field induced release of latent magnetization and polarization[J].Physical Review B:Condensed Matter,2005,72(10):104434.
[9]	Dinesh Varshney;Ashwini Kumar;Kavita Verma .Effect of A site and B site doping on structural, thermal, and dielectric properties of BiFeO_3 ceramics[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2011(33):8421-8426.
[10]	Yuan GL;Or SW;Chan HLW .Structural transformation and ferroelectric-paraelectric phase transition in Bi1-xLaxFeO3 (x=0-0.25) multiferroic ceramics[J].Journal of Physics, D. Applied Physics: A Europhysics Journal,2007(4):1196-1200.
[11]	Xiaohong Zheng;Qingyu Xu;Zheng Wen .The magnetic properties of La doped and codoped BiFeO_3[J].Journal of Alloys and Compounds,2010(1):108-112.

上一张下一张

计量

下载量()
访问量()

作者相关

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%

材料期刊网