Transient dynamics of the phase transition in VO2 revealed by mega-electron-volt ultrafast electron diffraction
oleh: Chenhang Xu, Cheng Jin, Zijing Chen, Qi Lu, Yun Cheng, Bo Zhang, Fengfeng Qi, Jiajun Chen, Xunqing Yin, Guohua Wang, Dao Xiang, Dong Qian
| Format: | Article |
|---|---|
| Diterbitkan: | Nature Portfolio 2023-03-01 |
Deskripsi
The atomic pathway in the photoinduced ultrafast structural phase transition of VO2 has been a controversial problem for a long time. Here the authors, using MeV ultrafast electron diffraction, show that the melting of V-V dimers and the transformation of crystal symmetry are two processes with different timescales.