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DOI | 10.1126/science.aam6168 |
Bragg coherent diffractive imaging of single-grain defect dynamics in polycrystalline films | |
Yau, Allison1; Cha, Wonsuk2,3; Kanan, Matthew W.1; Stephenson, G. Brian2; Ulvestad, Andrew2 | |
2017-05-19 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 356期号:6339页码:739-+ |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Polycrystalline material properties depend on the distribution and interactions of their crystalline grains. In particular, grain boundaries and defects are crucial in determining their response to external stimuli. A long-standing challenge is thus to observe individual grains, defects, and strain dynamics inside functional materials. Here we report a technique capable of revealing grain heterogeneity, including strain fields and individual dislocations, that can be used under operando conditions in reactive environments: grain Bragg coherent diffractive imaging (gBCDI). Using a polycrystalline gold thin film subjected to heating, we show how gBCDI resolves grain boundary and dislocation dynamics in individual grains in three-dimensional detail with 10-nanometer spatial and subangstrom displacement field resolution. These results pave the way for understanding polycrystalline material response under external stimuli and, ideally, engineering particular functions. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000401508400044 |
WOS关键词 | X-RAY-DIFFRACTION ; PHASE RETRIEVAL ; CRYSTAL-GROWTH ; NANOSCALE ; NANOPARTICLES ; MICROSCOPY ; METALS ; STRAIN |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/196084 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Stanford Univ, Dept Chem, Stanford, CA 94305 USA; 2.Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA; 3.Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA |
推荐引用方式 GB/T 7714 | Yau, Allison,Cha, Wonsuk,Kanan, Matthew W.,et al. Bragg coherent diffractive imaging of single-grain defect dynamics in polycrystalline films[J]. SCIENCE,2017,356(6339):739-+. |
APA | Yau, Allison,Cha, Wonsuk,Kanan, Matthew W.,Stephenson, G. Brian,&Ulvestad, Andrew.(2017).Bragg coherent diffractive imaging of single-grain defect dynamics in polycrystalline films.SCIENCE,356(6339),739-+. |
MLA | Yau, Allison,et al."Bragg coherent diffractive imaging of single-grain defect dynamics in polycrystalline films".SCIENCE 356.6339(2017):739-+. |
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