Abstract
Using near-edge x-ray absorption fine structure, the first experimental determination of Si atom concentrations occupying As sites in Si-doped GaAs (100) is reported. The measurements reveal that at high doping levels (≳1019 cm-3) in molecular-beam-epitaxy-grown samples, the number of such p-type Si atoms is insufficient to account for the observed large reduction of free-carriers.
Original language | English (US) |
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Pages (from-to) | 2357-2359 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 63 |
Issue number | 17 |
DOIs | |
State | Published - 1993 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)