Abstract
We report Stark shift measurements for Sb121 donor electron spins in silicon using pulsed electron spin resonance. Interdigitated metal gates on a Sb-implanted Si28 epilayer are used to apply the electric fields. Two quadratic Stark effects are resolved: a decrease of the hyperfine coupling between electron and nuclear spins of the donor and a decrease in electron Zeeman g factor. The hyperfine term prevails at magnetic fields of 0.35 T, while the g factor term is expected to dominate at higher magnetic fields. We discuss the results in the context of the Kane model quantum computer.
Original language | English (US) |
---|---|
Article number | 176404 |
Journal | Physical review letters |
Volume | 97 |
Issue number | 17 |
DOIs | |
State | Published - 2006 |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy