Phys. Rev. Lett. 84, 4725–4728 (2000)Metastable Helium Atom Stimulated Desorption of H+ IonReceived 15 July 1999; published in the issue dated 15 May 2000 H+ desorption induced by the impact of metastable helium atoms has been found for H2O/Na/Ni(110) coadsorption systems. The measurements were carried out using a time-of-flight technique and a pulsed-discharge type metastable helium atom ( 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*. The H+ desorption by He* may be understood within the framework of the Menzel-Gomer-Readhead model. © 2000 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.84.4725
DOI:
10.1103/PhysRevLett.84.4725
PACS:
79.20.Rf, 78.70.-g, 79.20.La, 79.60.-i
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