Abstract
H + desorption induced by the impact of metastable helium atoms (He ∗) with a thermal kinetic energy has been observed. The measurements were carried out for an alkali metal (K, Na)-covered Ni(110) surface using a time-of-flight technique and a pulsed-discharge-type He ∗ source. It is concluded that the H + desorption by He ∗ is induced by a hole created on the valence levels via the Auger deexcitation of He ∗.
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