Abstract
The yield of Cl+ ions from Si(111)7 × 7-Cl has been monitored through both the Cl and Si K-edges. The Cl K-edge ion yield EXAFS suggests a majority site origin, the data producing the same result as Auger yield SEXAFS: an atop geometry with a Cl-Si bond length of 2.00 ± 0.02 Å. The Cl+-yield data recorded at the Si K-edge are identical to bulk Si EXAFS and the desorption mechanism at this edge is concluded to be X-ray induced electron stimulated desorption (XESD).
Original language | English |
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Pages (from-to) | 546-550 |
Number of pages | 5 |
Journal | Surface Science |
Volume | 251-252 |
Issue number | C |
DOIs | |
Publication status | Published - 1 Jul 1991 |