Abstract
Changes in surface stoichiometry of GaN under the low-energy Ar bombardment were followed. Both core-level photoemission spectroscopy (PES) and near-edge x-ray absorption fine structure (NEXAFS) spectroscopy were employed to characterize the bombardment surface. The formation of a Ga-rich surface associated with the formation of metallic Ga and nitrogen interstitials, Ni, was observed.
| Original language | English |
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| Pages (from-to) | 4948-4950 |
| Number of pages | 3 |
| Journal | Applied Physics Letters |
| Volume | 83 |
| Issue number | 24 |
| DOIs | |
| Publication status | Published - 15 Dec 2003 |