Abstract
The strength of electron-phonon coupling in atomically uniform films of Ag on Fe was determined by angle-resolved photoemission from quantum well states. Suppression of electron-phonon coupling at surfaces appeared to be a general phenomenon for deeply bound states. It was found that certain shallow surface states can penetrate the surface barrier significantly and couple more strongly to phonons via a large crystal potential.
| Original language | English |
|---|---|
| Article number | 256802 |
| Pages (from-to) | 2568021-2568024 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 88 |
| Issue number | 25 I |
| State | Published - Jun 24 2002 |
| Externally published | Yes |