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I really wish physics articles would talk about the actual measurements. It sounds like they are using shrunken gnomes to observe electrons. Is it spectroscopy?
by jl2718 7y ago
I really wish physics articles would talk about the actual measurements. It sounds like they are using shrunken gnomes to observe electrons. Is it spectroscopy? Simulation? I think the truth would be a lot less exciting than what the article claims, but if you’re going to lie, might as well just write science fiction. Science journalism has never been great, but now it’s intentionally misleading.
- FreeFull 7y agoThe article says they use UV photons to kick electrons off the surface, and then measure the trajectories of the electrons
- djaque 7y agoThat would be angle resolved photoemission spectroscopy (ARPES). Read about it here: https://arpes.stanford.edu/research/tool-development/angle-resolved-photoemission-spectroscopy https://arpes.stanford.edu/research/tool-development/angle-r... The TL;DR is that you can kick electrons out of a material with light. You can study what comes off and work back to what the electrons were doing in the sample. At the most basic level it tells you "this many electrons were moving in this direction with this energy".