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Contact: Lynn Yarris
DOE/Lawrence Berkeley National Laboratory

XPE Spectroscopy

Caption: With photoemission spectroscopy techniques such as HARPES, a beam of x-rays flashed on a sample transfers energy from the photons to electrons, causing photoelectrons to be emitted. Measuring the kinetic energy of these photoelectrons and the angles at which they are ejected reveals much about the sample's electronic structure.

Credit: Image from Fadley group

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Related news release: Berkeley Lab scientists unveil an X-ray technique called HARPES

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