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Journal Article

Light-induced emergent phenomena in 2D materials and topological materials


Tang,  P.
School of Materials Science and Engineering, Beihang University;
Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Center for Free- Electron Laser Science;

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Bao, C., Tang, P., Sun, D., & Zhou, S. (2021). Light-induced emergent phenomena in 2D materials and topological materials. Nature Reviews Physics. doi:10.1038/s42254-021-00388-1.

Cite as: http://hdl.handle.net/21.11116/0000-0009-7ED9-6
Light–matter interaction in 2D and topological materials provides a fascinating control knob for inducing emergent, non-equilibrium properties and achieving new functionalities in the ultrafast timescale (from femtosecond to picosecond). Over the past decade, intriguing light-induced phenomena, such as Bloch–Floquet states and photo-induced phase transitions, have been reported experimentally, but many still await experimental realization. In this Review, we discuss recent progress on the light-induced phenomena, in which the light field could act as a time-periodic field to drive Floquet states, induce structural and topological phase transitions in quantum materials, couple with spin and various pseudospins, and induce nonlinear optical responses that are affected by the geometric phase. Perspectives on the opportunities of proposed light-induced phenomena, as well as open experimental challenges, are also discussed.