Rapid deterioration of metallic surfaces induced by intense ultraviolet radiation

Dah An Luh, Kuan Chun Liu, Cheng Maw Cheng, Ku Ding Tsuei

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4 Scopus citations


We report rapid deterioration of metallic surfaces on irradiation with ultraviolet light. Very fast degradation of the Shockley state of Cu(111) is observed during photoemission at low temperature. A different evolution of the Shockley states during annealing and cooling was also discovered. These observations seem to favor a mechanism based on photon-stimulated chemisorption of hydrogen on the surface. We suggest that this mechanism affects all experiments involving intense radiation and might become a major obstruction for future experiments with microfocused beams.

Original languageEnglish
Article number035427
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number3
StatePublished - 27 Jan 2010


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