The dynamic behavior of butanethiol and dodecanethiol adsorbates on Au(111) terraces
The dynamics of butanethiol and dodecanethiol monolayers adsorbed on Au(111) studied by <i>ex situ</i> and <i>in situ</i> sequential scanning tunneling microscopy (STM) shows, at room temperature and in the range of seconds, √3×√3 <i>R30°⇔c</i>(4×2) transitions. H...
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| Autores principales: | , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
1998
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/84128 |
| Aporte de: |
| Sumario: | The dynamics of butanethiol and dodecanethiol monolayers adsorbed on Au(111) studied by <i>ex situ</i> and <i>in situ</i> sequential scanning tunneling microscopy (STM) shows, at room temperature and in the range of seconds, √3×√3 <i>R30°⇔c</i>(4×2) transitions. High-resolution STM imaging also shows that these transitions can be explained by a displacement of adsorbed molecules from hollow to bridge sites and vice versa. Transitions from the <i>p</i>(<i>n</i>×1) superlattice to the √3×√3 <i>R30°</i> lattice were also imaged in real time. These processes appear to be coupled with fluctuations of the hole size of the Au(111) terrace. |
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