Open AccessSURFACE PHONON DISPERSIONS ON Cu(100) STUDIED BY THE EMBEDDED ATOM METHOD
Author(s) -
LUO NING-SHENG,
Xu Wen-Lan
Publication year - 1989
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.38.900
Subject(s) - phonon , surface phonon , atom (system on chip) , dispersion (optics) , surface (topology) , condensed matter physics , materials science , lattice (music) , spectroscopy , molecular physics , physics , optics , quantum mechanics , geometry , mathematics , computer science , acoustics , embedded system
The Embedded Atom Method is applied to study the properties of surface phonons of transition metal Cu. We derive the formula of surface lattice dynamical matrix from the se-miempirical functions. As an example, we calculate the surface phonon dispersions on Cu (100) surface; the calculated Raileigh phonon dispersion curve on Cu(100) along the direction ΓX is compared with that measured by electon-energy-loss-spectroscopy, and satifactory agreement is obtained.