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Structure and Stability of Si(114)-(2x1)

Steven C. Erwin·Alison A. Baski·Lloyd J. Whitman
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Abstract

We describe a recently discovered stable planar surface of silicon, Si(114). This high-index surface, oriented 19.5 degrees away from (001) toward (111), undergoes a 2x1 reconstruction. We propose a complete model for the reconstructed surface based on scanning tunneling microscopy images and first-principles total-energy calculations. The structure and stability of Si(114)-(2x1) arises from a balance between surface dangling bond reduction and surface stress relief, and provides a key to understanding the morphology of a family of surfaces oriented between (001) and (114).

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Steven C. Erwin, Alison A. Baski, Lloyd J. Whitman. 1996-06-28. Structure and Stability of Si(114)-(2x1). https://doi.org/10.1103/physrevlett.77.687

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