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Journal Article

An in situ study of reconstructed gold electrode surfaces by second harmonic generation.

MPS-Authors
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Lüpke,  G.
Abteilung Laserphysik, MPI for biophysical chemistry, Max Planck Society;

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Steinhoff,  R.
Abteilung Laserphysik, MPI for biophysical chemistry, Max Planck Society;

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Marowsky,  G.
Abteilung Laserphysik, MPI for biophysical chemistry, Max Planck Society;

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Citation

Friedrich, A., Pettinger, B., Kolb, D., Lüpke, G., Steinhoff, R., & Marowsky, G. (1989). An in situ study of reconstructed gold electrode surfaces by second harmonic generation. Chemical Physics Letters, 163(2-3), 123-128. doi:10.1016/0009-2614(89)80022-3.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002C-27B7-5
Abstract
Second harmonic generation (SHG) was employed to monitor in situ the potential-induced reconstruction of Au(111) and Au(100) electrodes. Rotating the sample by 360° about the surface normal yields for the unreconstructed Au(111)-(1×1) surface the well-known threefold symmetry pattern in the SHG intensity, while Au(100)-(1×1) shows no rotational anisotropy, as expected for C4v symmetry. For the reconstructed Au(111)-(1×23) surface, however, an additional onefold symmetry pattern is observed, which allows in situ monitoring of the structural transition between (1×1) and (1×23). For the reconstructed Au(100)-(5×20) surface, a threefold symmetry pattern was found.