Lattice-Mismatch-Induced Oscillatory Feature Size and Its Impact on the Physical Limitation of Grain Size
文献类型：期刊论文
| 作者 | Deng, Jinyu; Li, Huihui; Dong, Kaifeng; Li, Run-Wei; Peng, Yingguo; Ju, Ganping; Hu, Jiangfeng; Chow, Gan Moog; Chen, Jingsheng |
| 刊名 | PHYSICAL REVIEW APPLIED
 |
| 出版日期 | 2018 |
| 卷号 | 9期号:3 |
| 关键词 | Longitudinal Recording Media Magnetic-properties Fept Nanoparticles Thin-films Growth Microstructure Temperature Underlayer Fept(001) Systems |
| 英文摘要 | We find that the misfit strain may lead to the oscillatory size distributions of heteroepitaxial nanostructures. In heteroepitaxial FePt thin films grown on single-crystal MgO substrate, < 110 >-oriented mazelike and granular patterns with "quantized" feature sizes are realized in scanning-electron-microscope images. The physical mechanism responsible for the size oscillations is related to the oscillatory nature of the misfit strain energy in the domain-matching epitaxial FePt/MgO system, which is observed by transmission electron microscopy. Based on the experimental observations, a model is built and the results suggest that when the FePt island sizes are an integer times the misfit dislocation period, the misfit strain can be completely canceled by the misfit dislocations. With applying the mechanism, small and uniform grain is obtained on the TiN (200) polycrystalline underlayer, which is suitable for practical application. This finding may offer a way to synthesize nanostructured materials with well-controlled size and size distribution by tuning the lattice mismatch between the epitaxial-grown heterostructure. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 公开日期 | 2018-12-04 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/16748]  |
| 专题 | 2018专题 |
| 推荐引用方式 GB/T 7714 | Deng, Jinyu,Li, Huihui,Dong, Kaifeng,et al. Lattice-Mismatch-Induced Oscillatory Feature Size and Its Impact on the Physical Limitation of Grain Size[J]. PHYSICAL REVIEW APPLIED,2018,9(3). |
| APA | Deng, Jinyu.,Li, Huihui.,Dong, Kaifeng.,Li, Run-Wei.,Peng, Yingguo.,...&Chen, Jingsheng.(2018).Lattice-Mismatch-Induced Oscillatory Feature Size and Its Impact on the Physical Limitation of Grain Size.PHYSICAL REVIEW APPLIED,9(3). |
| MLA | Deng, Jinyu,et al."Lattice-Mismatch-Induced Oscillatory Feature Size and Its Impact on the Physical Limitation of Grain Size".PHYSICAL REVIEW APPLIED 9.3(2018). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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