https://www.selleckchem.com/pr....oducts/e7766-diammon
Oxygen, the third most abundant element in the universe, plays a key role in the chemistry of condensed matter and biological systems. Here, we report evidence for a hitherto unexplored Auger transition in oxides, where a valence band electron fills a vacancy in the 2s state of oxygen, transferring sufficient energy to allow electron emission. We used a beam of positrons with kinetic energies of [Formula see text] eV to create O 2s holes via matter-antimatter annihilation. This made possible the elimination of the large se
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