Universal self-amplification channel for surface plasma waves

Hai Yao Deng, Katsunori Wakabayashi, Chi Hang Lam

Research output: Journal article publicationJournal articleAcademic researchpeer-review

8 Citations (Scopus)


We present a theory of surface plasma waves (SPWs) in metals with arbitrary electronic collision rate τ-1. We show that there exists a universal intrinsic amplification channel for these waves, subsequent to the interplay between ballistic motions and the metal surface. We evaluate the corresponding amplification rate γ0, which turns out to be a sizable fraction of the SPW frequency ωs. We also find that the value of ωs depends on surface scattering properties, in contrast with the conventional theory.
Original languageEnglish
Article number045428
JournalPhysical Review B
Issue number4
Publication statusPublished - 30 Jan 2017

ASJC Scopus subject areas

  • Condensed Matter Physics


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