1994•Japanese Journal of Applied PhysicsRequires access

Straight Step Edge Formation on an InAs(001) Vicinal Surface by the Transition of Surface Reconstruction

Shunsuke Ohkouchi, Nobuyuki Ikoma

Abstract

Step structures of InAs (001) vicinal surfaces tilted by 1° towards the [11̄0] direction were investigated using scanning tunneling microscopy. A transition from an As-stabilized ( 2×4) to an In-stabilized ( 4×2) reconstruction caused a change in the step structure of the vicinal surfaces from ragged to straight along the [110] direction with the incorporation of step bunching. The straight shape of the step structure seems to be caused by desorption of arsenic atoms along the [110] direction.

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Key concepts: Vicinal, Scanning tunneling microscope, Surface reconstruction, Enhanced Data Rates for GSM Evolution, Surface (topology), Materials science, Crystallography, Condensed matter physics