Electronic state control using periodic light fields called Floquet engineering is a central topic in photophysics. The authors demonstrate an example of Floquet engineering, in which intramolecular vibrational excitation by a mid-infrared pulse in a molecular solid K-TCNQ induces a charge-spin modulated Floquet state synchronized with intramolecular vibration, destabilizing the spin Peierls phase.
- Daiki Sakai
- Takashi Yamakawa
- Hiroshi Okamoto
