HOLOGRAPHIC IMAGES OF ADATOMS, DIMERS AND REST ATOMS ON THE Si(111)-(7 × 7) SURFACE

Author:

SHEN TSAI-SHENG1,CHANG C. Y.1,CHOU Y. C.1,WEI C. M.2

Affiliation:

1. Department of Physics, National Tsing Hua University, Hsin-Chu, Taiwan 30043, China

2. Institute of Physics, Academia Sinica, Nankang, Taipei, Taiwan 11529, China

Abstract

The adatoms, dimers and rest atoms in the three outermost atomic layers of the Si(111)-(7 × 7) surface are directly imaged with glancing Kikuchi electron holography. The applicability of Kikuchi electron holography to complicated multiple-emitter surfaces is evident. The three-dimensional relative positions of atoms on the Si(111)-(7 × 7) surface are in good accordance with the LEED-optimized DAS model.

Publisher

World Scientific Pub Co Pte Lt

Subject

Materials Chemistry,Surfaces, Coatings and Films,Surfaces and Interfaces,Condensed Matter Physics

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