NDLI: Investigation of electrical properties in La-doped BiFeO$_{3}$–PbTiO$_{3}$ thin films prepared by sol

Content Provider	Springer Nature Link
Author	Chen, Dongfang Huang, Shengli Chen, Jianguo Cheng, Jinrong
Copyright Year	2015
Abstract	La-modified thin films of multiferroic 0.7(Bi$_{1−x }$La$_{ x }$)FeO$_{3}$–0.3PbTiO$_{3}$ (BFPT, x = 0, 0.01, 0.03, 0.05 and 0.1) solid solution were prepared by sol–gel method. Perovskite BFPT single-phase thin films were successfully synthesized at 600 °C by optimizing several preparation conditions. It was confirmed from X-ray diffraction that BFPT films tend to display sharper peaks with the La concentration, which could be attributed to the changes in grain size and the promotion of La doping in the crystallization. The dielectric constant ε $_{r}$ also showed a significant increase as compared to those of the undoped BFPT thin films. Furthermore, substitution of small amount of La atoms in BFPT films was effective in reducing leakage current and improving the ferroelectric behavior at a low electric field, which may strongly associated with the grain size and the domain wall density. The P $_{r}$ and E $_{c}$ values of 5 mol% La-doped BFPT thin films at room temperature were approximately 23 µC/cm$^{2}$ and 80 kV/cm, indicating the potential applications of BFPT thin films in non-volatile ferroelectric memory fields.
Starting Page	220
Ending Page	226
Page Count	7
File Format	PDF
ISSN	09280707
Journal	Journal of Sol-Gel Science and Technology
Volume Number	76
Issue Number	1
e-ISSN	15734846
Language	English
Publisher	Springer US
Publisher Date	2015-06-23
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	BiFeO$_{3}$–PbTiO$_{3}$ thin film La-doped Dielectric properties Ferroelectricity Ceramics, Glass, Composites, Natural Methods Inorganic Chemistry Optical and Electronic Materials Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Chemistry Materials Chemistry Biomaterials Condensed Matter Physics Electronic, Optical and Magnetic Materials

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