Instability and (2×1) reconstruction of Si(001) and (111) surfaces: a simple approach |
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| Authors: | M. Tomášek |
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| Affiliation: | (1) J. Heyrovský Institute of Physical Chemistry and Electrochemistry, Czechoslovak Academy of Sciences, CS-121 38 Prague 2, Czechoslovakia |
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| Abstract: | Recently, the present author introduced a simple qualitative theory of the instability and reconstruction of surfaces of solids exhibiting a certain covalent component of bonding. This theory is now applied to the (2×1) Si(001) and (111) surfaces, with a possible extension to analogous surfaces of germanium and GaAs(001). It is proposed that Shockley surface states from the vicinity of the Fermi energy play a key role in the electron-phonon coupling.Dedicated to Professor J. Koutecký on the occasion of his 65th birthday |
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| Keywords: | Surface reconstruction Surface states Electron-phonon coupling Silicon surfaces Simple model |
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