Mikhailovskij IM, Smith GDW, Wanderka N, Mazilova TI. Non-kinkwise field evaporation and kink relaxation on stepped W(112) surface.
Ultramicroscopy 2003;
95:157-63. [PMID:
12535560 DOI:
10.1016/s0304-3991(02)00312-1]
[Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
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.
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