| Autor: |
Jiang, Hailing, Wang, Tao, Zhang, Zhenyu, Shi, Ruochen, Xu, Xifan, Sheng, Bowen, Liu, Fang, Ge, Weikun, Wang, Ping, Shen, Bo, Gao, Peng, Lindsay, Lucas R, Wang, Xinqiang |
| Rok vydání: |
2024 |
| Předmět: |
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| Druh dokumentu: |
Working Paper |
| Popis: |
Phonon resistance from dislocation scattering is often divided into short-range core interactions and long-range strain field interactions. Using electron energy-loss spectroscopy on a GaN dislocation, we report observations of vibrational modes localized at specific core atoms (short-range) and strain-driven phonon energy shifts around the dislocation (long-range). Ab initio calculations support these findings and draw out additional details. This study reveals atomically resolved vibrational spectra of dislocations, thus offering insights for engineering improved material functionalities. |
| Databáze: |
arXiv |
| Externí odkaz: |
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