Surface Structure of InAs (001) Treated with (NH4)2Sx Solution
- 1 May 1991
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 30 (5A) , L786
- https://doi.org/10.1143/jjap.30.l786
Abstract
The surface structure of (NH4)2S x -treated InAs (001) was studied by means of coaxial impact collision ion scattering spectroscopy (CAICISS) and low-energy electron diffraction (LEED). These observations revealed that arsenic atoms at the outermost surface are partially replaced by sulfur atoms. Significantly, the (2×1) reconstruction of the (NH4)2S x -treated surface with heat treatment at 380°C is described by the formation of dimers lined up in [11̄0] direction. This surface model is supported by the data obtained by synchrotron radiation photoemission spectroscopy (SRPES).Keywords
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