Direct Observation of "Pac-Man" Coarsening.
نویسندگان
چکیده
We report direct observation of a "Pac-Man" like coarsening mechanism of a self-supporting thin film of nickel oxide. The ultrathin film has an intrinsic morphological instability due to surface stress leading to the development of local thicker regions at step edges. Density functional theory calculations and continuum modeling of the elastic instability support the model for the process.
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ورودعنوان ژورنال:
- Nano letters
دوره 17 8 شماره
صفحات -
تاریخ انتشار 2017