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The Ga/Si(112) interface consists of a self-assembled, mesoscopic array of ''atomic wires'' on a high-index Si(112) surface. The structural uniformity of the atomic-wires or ''quantum-wire array'' appears far superior to those created by nano-lithography or STM atom manipulation, which presents an interesting opportunity to explore electronic transport in atomic wires of mesoscopic length. The structure...
The effect of the electric field created by an external voltage at a scanning tunneling microscope interface is analyzed by means of a self-consistent LCAO approach. The theoretical method introduced in this paper allows us to analyze realistic tip-sample geometries without introducing spurious two-dimensional periodicities. We present results for both the lateral forces acting on different alkali...
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