Effect of lattice-mismatch strain on the structural and dielectric properties of (Pb,Sr)TiO3 thin films grown by pulsed laser deposition
文献类型：期刊论文
| 作者 | Yong, LP ; Zhu, XH ; Wang, FB ; Li, SL ; Sun, XS ; Zheng, DN |
| 刊名 | MATERIALS LETTERS
 |
| 出版日期 | 2007 |
| 卷号 | 61期号:2页码:542 |
| 关键词 | ANISOTROPIC INPLANE STRAINS FERROELECTRICITY SRTIO3 LAALO3 |
| ISSN号 | 0167-577X |
| 通讯作者 | Zheng, DN: Chinese Acad Sci, Natl Lab Superconduct, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China. |
| 中文摘要 | Pb0.35Sr0.65TiO3 (PST) thin films have been fabricated on LaAlO3 (LAO) and MgO substrates using the pulsed laser deposition technique. The microstructure characteristics of the films were examined by means of X-ray diffraction, atomic force microscopy, scanning electron microscopy and Raman spectroscopy, and the results indicate that the films are epitaxially grown and show good crystallinity. The dielectric constant dependence on DC bias voltage and temperature were measured in a planar capacitor configuration for these films. Compared to the PST thin film grown on LAO, the film grown on MgO showed a higher temperature of the capacitance maximum and a higher dielectric constant at zero bias. We explain the results by taking into account the lattice-mismatch strain between the substrate and the film. In contrast to the in-plane compressive strain induced by the LAO substrate, the in-plane tensile strain induced by the MgO substrate enlarges the unit cell of PST and enhances the magnitude of dipole moments, which increases the dielectric constant. These results indicate that a reasonable in-plane tensile strain could improve the dielectric properties of PST thin films. (c) 2006 Elsevier B.V All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/36472]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Yong, LP,Zhu, XH,Wang, FB,et al. Effect of lattice-mismatch strain on the structural and dielectric properties of (Pb,Sr)TiO3 thin films grown by pulsed laser deposition[J]. MATERIALS LETTERS,2007,61(2):542. |
| APA | Yong, LP,Zhu, XH,Wang, FB,Li, SL,Sun, XS,&Zheng, DN.(2007).Effect of lattice-mismatch strain on the structural and dielectric properties of (Pb,Sr)TiO3 thin films grown by pulsed laser deposition.MATERIALS LETTERS,61(2),542. |
| MLA | Yong, LP,et al."Effect of lattice-mismatch strain on the structural and dielectric properties of (Pb,Sr)TiO3 thin films grown by pulsed laser deposition".MATERIALS LETTERS 61.2(2007):542. |
入库方式： OAI收割
来源：物理研究所
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