2 9Si hyperfine structure of unpaired spins at the Si/SiO2 interface
Author:
- 15 December 1983
- journal article
- conference paper
- Published by AIP Publishing in Applied Physics Letters
- Vol. 43 (12) , 1111-1113
Abstract
The hyperfine spectrum associated with unpaired electrons at the (111) Si/SiO2 interface (Pb centers) is reported for the first time. Electron paramagnetic resonance measurements indicate that the hyperfine interaction S↘⋅Ā⋅I↘ arises from the 29Si isotope and is characterized by A∥=146.(±5.)×10−4 cm−1 and A⊥=85.(±8.)×10−4 cm−1. An analysis of this hyperfine interaction firmly establishes many of the details in the structure of this interface defect.Keywords
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