Abstract
Ultrafast Optics Attosecond time-resolved spectroscopy provides the ability to probe the fastest electronic processes in atoms and solids. Yet the photoemission process from solids is not fully understood. Siek et al. studied photoemission from the layered van der Waals material WSe2 and found that electron emission occurs as a sequence of events that are apparently time-ordered with respect to rising angular momentum of the involved initial states (see the Perspective by Yakovlev and Karpowicz). This result will help provide a more detailed picture of the photoemission process. Science , this issue p. [1274][1]; see also p. [1239][2] [1]: /lookup/doi/10.1126/science.aam9598 [2]: /lookup/doi/10.1126/science.aao3421
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