Beyond the molecular movie: Dynamics of bands and bonds during a photoinduced phase transition

C.W. Nicholson, A. Lücke, W.G. Schmidt, M. Puppin, L. Rettig, R. Ernstorfer, M. Wolf, Science (2018) 821–825.

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Journal Article | Published | English
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<jats:p>Ultrafast nonequilibrium dynamics offer a route to study the microscopic interactions that govern macroscopic behavior. In particular, photoinduced phase transitions (PIPTs) in solids provide a test case for how forces, and the resulting atomic motion along a reaction coordinate, originate from a nonequilibrium population of excited electronic states. Using femtosecond photoemission, we obtain access to the transient electronic structure during an ultrafast PIPT in a model system: indium nanowires on a silicon(111) surface. We uncover a detailed reaction pathway, allowing a direct comparison with the dynamics predicted by ab initio simulations. This further reveals the crucial role played by localized photoholes in shaping the potential energy landscape and enables a combined momentum- and real-space description of PIPTs, including the ultrafast formation of chemical bonds.</jats:p>
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Science
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821-825
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Nicholson CW, Lücke A, Schmidt WG, et al. Beyond the molecular movie: Dynamics of bands and bonds during a photoinduced phase transition. Science. 2018:821-825. doi:10.1126/science.aar4183
Nicholson, C. W., Lücke, A., Schmidt, W. G., Puppin, M., Rettig, L., Ernstorfer, R., & Wolf, M. (2018). Beyond the molecular movie: Dynamics of bands and bonds during a photoinduced phase transition. Science, 821–825. https://doi.org/10.1126/science.aar4183
@article{Nicholson_Lücke_Schmidt_Puppin_Rettig_Ernstorfer_Wolf_2018, title={Beyond the molecular movie: Dynamics of bands and bonds during a photoinduced phase transition}, DOI={10.1126/science.aar4183}, journal={Science}, author={Nicholson, C. W. and Lücke, A. and Schmidt, Wolf Gero and Puppin, M. and Rettig, L. and Ernstorfer, R. and Wolf, M.}, year={2018}, pages={821–825} }
Nicholson, C. W., A. Lücke, Wolf Gero Schmidt, M. Puppin, L. Rettig, R. Ernstorfer, and M. Wolf. “Beyond the Molecular Movie: Dynamics of Bands and Bonds during a Photoinduced Phase Transition.” Science, 2018, 821–25. https://doi.org/10.1126/science.aar4183.
C. W. Nicholson et al., “Beyond the molecular movie: Dynamics of bands and bonds during a photoinduced phase transition,” Science, pp. 821–825, 2018.
Nicholson, C. W., et al. “Beyond the Molecular Movie: Dynamics of Bands and Bonds during a Photoinduced Phase Transition.” Science, 2018, pp. 821–25, doi:10.1126/science.aar4183.

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