以快速等离子烧结法(SPS)制备的BiFeO3块体为靶材,用激光脉冲沉积(PLD)法在不同衬底上制备了BiFeO3 (100)/LaNiO3 (100)/Si(100)、BiFeO3(111)/LaNiO3 (111)/SrTiO3 (111)、BiFeO3(110) /Pt/TiO2/SiO2/Si、BiFeO3 (110) LaNiO3 (110)/Pt/TiO2/SiO2/Si不同择优取向的薄膜,并对薄膜进行了XRD和SEM分析.X射线衍射结果表明,BiFeO3薄膜外延沉积在导电层衬底上,并且它们具有相同的高度取向.SEM分析表明,薄膜上的晶粒是柱状形态,表面光滑致密且颗粒分布非常均匀,晶粒的边界和尺寸也能被清晰地观察到.通过铁电铁磁性能研究,BiFeO3(111)择优取向性能最佳.SrTiO3衬底上(111)取向的BiFeO3薄膜铁电剩余极化值达到了30.3μC/cm2,漏电流为1.0×10-3A/cm2,饱和磁化强度为20.0kA/m.
参考文献
| [1] | Lebeugle D;Colson D;Forget A et al.Electric-field-induced spin flop in BiFeO3 single crystals at room temperature[J].Physical Review Letters,2008,100:227608-227610. |
| [2] | B. G. Park;J. Wunderlich;X. Marti .A spin-valve-like magnetoresistance of an antiferromagnet-based tunnel junction[J].Nature materials,2011(5):347-351. |
| [3] | Bibes M;Barthélémy A .Multiferroics:towards a magnetoelectric memory[J].Nature Materials,2008,7:425-429. |
| [4] | J. SILVA;A. REYES;H. ESPARZA.BiFeO_3: A Review on Synthesis, Doping and Crystal Structure[J].Integrated Ferroelectrics,2011:47-59. |
| [5] | Bea H;Bibes M;Zhu X H et al.Crystallographic,magnetic,and ferroelectric structures of bulklike BiFeO3 thin films[J].Applied Physics Letters,2008,93:072901-0729012. |
| [6] | 程蒙,谈国强,夏傲,任慧君,王艳.CSD法在亲水性的FTO基板上制备BiFeO3薄膜及其电性能的研究[J].功能材料,2012(02):250-252. |
| [7] | Gao F;Cai C;Wang Y;Dong S;Qiu XY;Yuan GL;Liu ZG;Liu JM .Preparation of la-doped BiFeO3 thin films with Fe2+ ions on Si substrates[J].Journal of Applied Physics,2006(9):94105-1-94105-4-0. |
| [8] | Kawae T;Terauchi Y;Tsuda H .Improved leakage and ferroelectric properties of Mn and Ti codoped BiFeO3 thin films[J].Applied Physics Letters,2009,94:112904-112906. |
| [9] | Habouti S;Shiva RK;Solterbeck CH;Es-Souni M;Zaporojtchenko V .La0.8Sr0.2MnO3 buffer layer effects on microstructure, leakage current, polarization, and magnetic properties of BiFeO3 thin films[J].Journal of Applied Physics,2007(4):44113-1-44113-7-0. |
| [10] | Jang H W;Ortiz D;Baek S H et al.Domain engineering for enhanced ferroelectric properties of epitaxial (001) BiFeO3 thin films[J].Advanced Materials,2009,21:817-820. |
| [11] | Jang H W;Baek S H;Ortiz D et al.Strain-induced polarization rotation in epitaxial (001) BiFeO3 thin films[J].Physical Review Letters,2008,101:107602-107605. |
| [12] | Jiefang Li;Junling Wang;M. Wuttig;R. Ramesh;Naigang Wang;B. Ruette;A. P. Pyatakov;A. K. Zvezdin;D. Viehland .Dramatically enhanced polarization in (001), (101), and (111) BiFeO_(3) thin films due to epitiaxial-induced transitions[J].Applied physics letters,2004(25):5261-5263. |
| [13] | Kartavtseva M S;Gorbenko Yu O;Kaul A R .The influence of epitaxial strain on magnetic and electrical properties of BiFeO3 thin films[J].Thin Solid Films,2010,518:4750-4754. |
| [14] | Chu Y H;Cruz M P;Yang C H et al.Domain control in multiferroic BiFeO3 through substrate vicinality[J].Advanced Materials,2007,19:2662-2665. |
| [15] | Qiu Q Y;Mahjoub R;Alpay S P et al.Misfit strainfilm thickness phase diagrams and related electromechanical properties of epitaxial ultra thin lead zirconate titanatefilms[J].Acta Materialia,2010,58:823-826. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%