Abnormal lattice expansion and double periodicity in La0.7Sr0.3MnO3 thin films under electron irradiation
文献类型：期刊论文
| 作者 | M. Zhang ; X. L. Ma ; D. X. Li ; H. B. Lu ; Z. H. Chen ; G. Z. Yang |
| 刊名 | Journal of Materials Research
 |
| 出版日期 | 2005 |
| 卷号 | 20期号:7页码:1778-1784 |
| 关键词 | perovskite-type oxides molecular-dynamics fuel-cells magnetoresistance |
| ISSN号 | 0884-2914 |
| 中文摘要 | Perovskite-based SrNb0.2Ti0.8O3/La0.7Sr0.3MnO3 bilayer films were grown on (001) SrTiO3 substrate. By means of in situ transmission electron microscopy, lattice expansion and double periodicity were identified in both plan-view and cross-section La0.7Sr0.3MnO3 films under electron irradiation for 25 s. After the electron beam was removed from specimens, the original perovskite structure recovered within 10 min. However, when irradiation time was more than 1 min, the original perovskite structure could not recover, and became an amorphous phase or a cavity created by irradiation. According to first-principle calculation and electron diffraction pattern simulation, formation mechanism of the lattice expansion and double periodicity is proposed based on oxygen deficiency during electron irradiation. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35220]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | M. Zhang,X. L. Ma,D. X. Li,et al. Abnormal lattice expansion and double periodicity in La0.7Sr0.3MnO3 thin films under electron irradiation[J]. Journal of Materials Research,2005,20(7):1778-1784. |
| APA | M. Zhang,X. L. Ma,D. X. Li,H. B. Lu,Z. H. Chen,&G. Z. Yang.(2005).Abnormal lattice expansion and double periodicity in La0.7Sr0.3MnO3 thin films under electron irradiation.Journal of Materials Research,20(7),1778-1784. |
| MLA | M. Zhang,et al."Abnormal lattice expansion and double periodicity in La0.7Sr0.3MnO3 thin films under electron irradiation".Journal of Materials Research 20.7(2005):1778-1784. |
入库方式： OAI收割
来源：金属研究所
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