Non-kinkwise field evaporation and kink relaxation on stepped W(112) surface.
Low-temperature field evaporation of the [111] steps on a W(211) surface was investigated by field ion microscopy (FIM). The atoms at the (112)[1;1;1] kink site are anomalously stable against field evaporation. This effect results in non-kinkwise field evaporation near the kink of this type. The non-kinkwise field evaporating steps [211]<111> usually produce the reconstructed atomic chain with double-space arranged adatoms. The experimental results reveal atomic relaxation effects at steps and kinks. The normal to surface differential relaxation of the kink-site atoms was estimated by the geometrical method of indirect magnification and by simulation of the FIM image.
Mikhailovskij
I M
IM
Department of Solid State Physics, Kharkov Institute of Physics and Technology, Academicheskaja 1, 61108, Kharkov, Ukraine. astr@kharkov.ua
Smith
G D W
GD
Wanderka
N
N
Mazilova
T I
TI