Paramagnetic Resonance Study of a Deep Donor in Silicon
- 1 March 1965
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 137 (5A), A1520-A1530
- https://doi.org/10.1103/physrev.137.a1520
Abstract
The impurity sulfur acts as a double donor in silicon. Assuming the ion to be substitutional, is analogous to neutral phosphorus, except that the binding energy of the donor electron is much greater. Here we report paramagnetic resonance absorption of , including a detailed study, made using electron-nuclear-double-resonance techniques, of the hyperfine interaction with neighboring nuclei. We find hyperfine interaction constants which are inconsistent with the Kohn-Luttinger wave function (derived from the effectivemass approximation and intended for shallow donors) as applied to . This result indicates that contributions to the donor wave function from parts of the silicon energy band structure (notably ) other than the conduction-band minima are important. Resonant absorption also is reported for other centers including a sulfur pair and several iron-sulfur pairs.
Keywords
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