The multi-hole localization mechanism for particle emission from semiconductor surfaces
- 1 March 1993
- journal article
- Published by IOP Publishing in Journal of Physics: Condensed Matter
- Vol. 5 (9) , 1187-1194
- https://doi.org/10.1088/0953-8984/5/9/003
Abstract
The authors have investigated the consequences of multi-hole localization at defect sites on the GaP(110) surface: the relaxation of the lattice and the emission of atoms due to bond breaking. It is shown that the combination of localization of two-hole states on a defect with cascade excitation results in emission of an atom from the defect. The results support the mechanism suggested by Hattori et al. (1990) of defect-initiated emission of Ga atoms under laser irradiation, of which the yield is a superlinear function of laser fluence.Keywords
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