Open AccessA NEW ATOMIC STRUCTURE MODEL OF Si {001} 2×1 SURFACE
Author(s) -
蓝田,
徐飞岳
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.38.1069
Subject(s) - dimer , electron diffraction , electronic band structure , atomic physics , materials science , surface (topology) , atomic theory , diffraction , atomic model , surface structure , electronic structure , electron , physics , crystallography , condensed matter physics , molecular physics , chemistry , optics , quantum mechanics , nuclear magnetic resonance , geometry , mathematics
In this papar,a new atomic structure model of the Si{001}2×1 surface determined from band theory calcution of low-energy-electron diffraction are prensented.The new structure model involves a dimer band length ld = 2.387? and thee atomic layer distances d1 = 0.50±0.01?, d2= 0.96±0.01?, d3 = 1.17±0.01? and two asymmetric displacements of dimer atoms.