TY  - GEN
AU  - Heid,Rolf
AU  - Bohnen,Klaus-Peter
AU  - Sklyadneva,Irina Yu
AU  - Chulkov,Evgueni V.
TI  - Electron–phonon interaction on the (110) surface of Ag and Cu
KW  - поверхностные электронные состояния
KW  - поверхностные фононные моды
KW  - электрон-фононное взаимодействие
KW  - статьи в сборниках
N2  - We report on the first ab initio study of the electron–phonon interaction and its contribution to the lifetime
broadening of excited hole (electron) surface states on the (110) surface of Ag and Cu. The calculations based on densityfunctional
 theory were carried out using a linear response approach in the mixed-basis pseudopotential representation.
 The calculated strength of the phonon-mediated scattering varies with the energy position of a hole (electron) state in
 the surface energy band while a directional anisotropy is noticeable only for occupied surface states. It is shown that the
 electron–phonon interaction in occupied surface states is largely determined by bulk electronic states and is weak
 compared to the phonon-induced coupling of excited electrons, characterized by a strong energy dependence due to
 significant intraband scattering. Analysis of various contributions to the electron–phonon coupling reveals that the bulk
 phonon modes determine the scattering of excited holes, while the surface phonon modes are more involved in the
 coupling of exited electrons
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