EFFECT OF PHONON-ELECTRON COUPLING ON THE SURFACE WAKE POTENTIAL | Zendy

Xian Meng | Zendy; YouNian Wang | Zendy

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EFFECT OF PHONON-ELECTRON COUPLING ON THE SURFACE WAKE POTENTIAL

Author(s) -

Xian Meng,

YouNian Wang

Publication year - 1998

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.47.1155

Subject(s) - wake , coupling (piping) , surface phonon , specular reflection , oscillation (cell signaling) , semiconductor , electron , phonon , physics , condensed matter physics , dielectric , reflection (computer programming) , atomic physics , materials science , optics , mechanics , optoelectronics , quantum mechanics , biology , computer science , metallurgy , genetics , programming language

The wake potential and energy loss of a swift ion moving parallel to a heavily doped semiconductor surface in vacuum are studied with the specular-reflection model and the dielectric response theory. The phonon-electron coupling effect on the surface wake potential and the energy loss is investigated by using a frequency-dependent dielectric function. We find that there are two branches of phonon-electron coupling excitations which contribute to the wake potential and the energy loss. Numerical results show that the oscillation form of the wake potential is obviously influenced by the phonon-electron coupling effect.

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