We show that previously unexplained features in the TOF spectra of He and Ne scattered from solid surfaces can be attributed to multiphonon processes. We find that a simple Gaussian distribution, obtained by Brako and Newns within the trajectory approximation, accounts rather well for these features. The average energy transfer appearing in this distribution is evaluated by the Baule formula. We obtain an interpolation formula that describes both multiphonon and one-phonon processes, and is consistent with the Distorted Wave Born Approximation for the latter.

One-phonon and multiphonon processes in atom-surface scattering / V., Celli; D., Himes; Bortolani, Virginio; Santoro, Giorgio; Jp, Toennies; G., Zang. - In: SURFACE SCIENCE. - ISSN 0039-6028. - STAMPA. - 242(1991), pp. 518-523.

One-phonon and multiphonon processes in atom-surface scattering

BORTOLANI, Virginio;SANTORO, Giorgio;
1991

Abstract

We show that previously unexplained features in the TOF spectra of He and Ne scattered from solid surfaces can be attributed to multiphonon processes. We find that a simple Gaussian distribution, obtained by Brako and Newns within the trajectory approximation, accounts rather well for these features. The average energy transfer appearing in this distribution is evaluated by the Baule formula. We obtain an interpolation formula that describes both multiphonon and one-phonon processes, and is consistent with the Distorted Wave Born Approximation for the latter.
242
518
523
One-phonon and multiphonon processes in atom-surface scattering / V., Celli; D., Himes; Bortolani, Virginio; Santoro, Giorgio; Jp, Toennies; G., Zang. - In: SURFACE SCIENCE. - ISSN 0039-6028. - STAMPA. - 242(1991), pp. 518-523.
V., Celli; D., Himes; Bortolani, Virginio; Santoro, Giorgio; Jp, Toennies; G., Zang
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11380/307397
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