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Spectroscopic examination of the Na/Si(111)-(3×1) surface structure

Myung-Ho Kang, Jin-Ho Kang, and Sukmin Jeong
Phys. Rev. B 58, R13359(R) – Published 15 November 1998
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Abstract

We have examined a recently proposed experimental model for the alkali-metal induced Si(111)-(3×1) surface structure, based on density-functional theory calculations and their comparison with experiments on the structural and electronic properties of Na/Si(111)-(3×1). This model, characterized by the alkali-metal adsorption in empty channels and the resulting honeycomblike substrate reconstruction, is energetically favored and reproduces well the experimental scanning-tunneling-microscope images, surface-state band structure, and Si 2p surface core-level spectra, which together provide a convincing theoretical demonstration that the employed model is acceptable both in energetics and in spectroscopic examination.

  • Received 5 June 1998

DOI:https://doi.org/10.1103/PhysRevB.58.R13359

©1998 American Physical Society

Authors & Affiliations

Myung-Ho Kang and Jin-Ho Kang

  • Department of Physics, Pohang University of Science and Technology, Pohang 790-784, Korea

Sukmin Jeong

  • Institute of Physics, University of Tsukuba, Tsukuba 305, Japan

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Vol. 58, Iss. 20 — 15 November 1998

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