Structure determination of the Si(111)-(2×1) surface with channeling and blocking
- 15 November 1984
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 30 (10), 6235-6237
- https://doi.org/10.1103/physrevb.30.6235
Abstract
The structure of the cleaved Si(111)-(2×1) has been determined with medium-energy ion scattering using the effects of channeling and blocking. The basic structure arrived at is the -bonded chain model, modified by a tilt in the first- and second-layer chains, of 0.3 (+0.35, -0.45 Å) and -0.15 (+0.25, -0.15 Å), respectively. The first-layer chain is not relaxed significantly. We find that strong enhancement of surface thermal vibrations is needed to obtain good agreement with experimental results. The structural parameters determined do not depend on the detailed choice of vibration amplitudes.
Keywords
This publication has 12 references indexed in Scilit:
- Buckling: an essential feature of the Si(111) 2×1 surface geometrySolid State Communications, 1984
- Test of structural models for the Si{111} 2 × 1 surfacePhysical Review B, 1983
- Si(111)-(2×1) Surface: Buckling, Chains, or Molecules?Physical Review Letters, 1983
- Surface geometries from channeling and blockingJournal of Vacuum Science & Technology A, 1983
- Test of a new Si(111)(2 × 1) surface model by low-energy electron diffractionSolid State Communications, 1983
- Reconstruction of Semiconductor Surfaces: Buckling, Ionicity, and-Bonded ChainsPhysical Review Letters, 1982
- Electronic structure of the π-bonded chain model and the nonbuckled antiferromagnetic insulator model for the Si(111) surfaceJournal of Vacuum Science and Technology, 1982
- New-Bonded Chain Model for Si(111)-(2×1) SurfacePhysical Review Letters, 1981
- Theory of reconstruction induced subsurface strain — application to Si(100)Surface Science, 1978
- Effect of Invariance Requirements on the Elastic Strain Energy of Crystals with Application to the Diamond StructurePhysical Review B, 1966