Thermal desorption of cold positronium from oxygen-treated Al(111) surfaces

We have measured the yields and energy spectra of positronium (Ps) emitted from Al(111) surfaces treated by exposure to oxygen gas at low temperatures. We find that the oxygen induces the emission of Ps with kinetic energies of a few tenths of an eV, in agreement with previous work. We also find tha...

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Veröffentlicht in:Physical review. B, Condensed matter Condensed matter, 1991-09, Vol.44 (11), p.5791-5799
Hauptverfasser: MILLS, A. P, SHAW, E. D, LEVENTHAL, M, CHICHESTER, R. J, ZUCKERMAN, D. M
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Sprache:eng
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