Sm–Ti co-substituted BiFeO3 thin films prepared by sol–gel technique
作者： Dong Hong , Shengwen Yu , Jinrong Cheng
DOI: 10.1016/J.CAP.2011.01.029
关键词:
摘要: Abstract In this paper, BiFeO3 (BFO), Bi0.95Sm0.05FeO3 (BSF), BiFe0.95Ti0.05O3 (BFT) and Bi0.95Sm0.05Fe0.95Ti0.05O3 (BSFT) thin films were deposited on the Pt (111)/TiO2/SiO2/Si(100) substrates by sol–gel technique. X-ray diffraction scanning electron microscope measurements explain that increased lattice constant uniform surface morphology can be obtained Sm–Ti co-substitution in BFO film. Meanwhile, dielectric is improved up to 230 at 100 kHz leakage current density decreases 1.5 × 10−5 A/cm2 300 kV/cm. Consequently, ferroelectricity of BSFT film remarkably enhanced with 2Pr 17.024 μC/cm2 563 kV/cm. The electrical conductivity 387 kV/cm calculated 2.8 × 10−12 Ω−1 cm−1.
harvard.edu
elsevier.com
sci-hub.se 参考文章(22)
S. K. Singh, Y. K. Kim, H. Funakubo, H. Ishiwara, Epitaxial BiFeO3 thin films fabricated by chemical solution deposition Applied Physics Letters. ,vol. 88, pp. 162904- ,(2006) , 10.1063/1.2196477
F. Gao, C. Cai, Y. Wang, S. Dong, X. Y. Qiu, G. L. Yuan, Z. G. Liu, J.-M. Liu, Preparation of La-doped BiFeO3 thin films with Fe2+ ions on Si substrates Journal of Applied Physics. ,vol. 99, pp. 094105- ,(2006) , 10.1063/1.2195368
Dongeun Lee, Min G Kim, Sangwoo Ryu, Hyun M Jang, Sang G Lee, None, Epitaxially grown La-modified BiFeO3 magnetoferroelectric thin films Applied Physics Letters. ,vol. 86, pp. 222903- ,(2005) , 10.1063/1.1941474
G. L. Yuan, Siu Wing Or, Multiferroicity in polarized single-phase Bi0.875Sm0.125FeO3 ceramics Journal of Applied Physics. ,vol. 100, pp. 024109- ,(2006) , 10.1063/1.2220642
Jun Liu, Meiya Li, Ling Pei, Benfang Yu, Dongyun Guo, Xingzhong Zhao, Effect of Ce doping on the microstructure and electrical properties of BiFeO3 thin films prepared by chemical solution deposition Journal of Physics D. ,vol. 42, pp. 115409- ,(2009) , 10.1088/0022-3727/42/11/115409
M. Dawber, K. M. Rabe, J. F. Scott, Physics of thin-film ferroelectric oxides Reviews of Modern Physics. ,vol. 77, pp. 1083- 1130 ,(2005) , 10.1103/REVMODPHYS.77.1083
Jong Kuk Kim, Sang Su Kim, Won-Jeong Kim, Amar S. Bhalla, Ruyan Guo, Enhanced ferroelectric properties of Cr-doped BiFeO3 thin films grown by chemical solution deposition Applied Physics Letters. ,vol. 88, pp. 132901- ,(2006) , 10.1063/1.2189453
Gustau Catalan, James F. Scott, Physics and Applications of Bismuth Ferrite Advanced Materials. ,vol. 21, pp. 2463- 2485 ,(2009) , 10.1002/ADMA.200802849
ZHENG CHAODAN, YU JUN, ZHANG DUANMING, YANG BIN, WU YUNYI, WANG LONGHAI, WANG YUNBO, ZHOU WENLI, PROCESSING AND FERROELECTRIC PROPERTIES OF Ti-DOPED BiFeO3 CERAMICS Integrated Ferroelectrics. ,vol. 94, pp. 31- 36 ,(2007) , 10.1080/10584580701755872
Y W Li, Z G Hu, F Y Yue, P X Yang, Y N Qian, W J Cheng, X M Ma, J H Chu, Oxygen-vacancy-related dielectric relaxation in BiFeO3 films grown by pulsed laser deposition Journal of Physics D. ,vol. 41, pp. 215403- ,(2008) , 10.1088/0022-3727/41/21/215403