Dissipation of the excess energy of the adsorbate-thermalization via electron transfer

Pawel Strak, Konrad Sakowski, Pawel Kempisty, Stanislaw Krukowski

研究成果: Contribution to journalArticle査読

2 被引用数 (Scopus)

抄録

A new scenario for the thermalization process of adsorbates at solid surfaces is proposed. The scenario is based on the existence of an electric dipole layer in which the electron wavefunctions extend over the positive ions, creating a strong local electric field which drags the electrons into the solid interior and repels the positive ions. During adsorption the electrons tunnel into the solid interior, conveying the excess energy. The positive ions are retarded by the field, losing the excess kinetic energy, and are located smoothly into the adsorption sites. In such a scheme, the excess energy is not dissipated locally, avoiding melting or the creation of defects which is in accordance with experiments. The scenario is supported by ab initio calculation results, including density function theory of the slabs representing the AlN surface and the Schrodinger equation for the time evolution of hydrogen-like atoms at the solid surface.

本文言語英語
ページ(範囲)9149-9155
ページ数7
ジャーナルPhysical Chemistry Chemical Physics
19
13
DOI
出版ステータス出版済み - 2017
外部発表はい

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)
  • 物理化学および理論化学

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