Table 2. The pre-exponential factor (D 0) and activation energy (E A ) of Au on Au(111).
| Barrier | With  |
With  |
||
|---|---|---|---|---|
| D0(Å2/ps) | EA(eV) | D0(Å2/ps) | EA(eV) | |
 |
41.9 | 0.394 | 42.9 | 0.318 |
 |
42.3 | 0.212 | 49.9 | 0.177 |
 |
106.4 | 0.139 | 100.3 | 0.118 |
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