科研之友
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摘要
We demonstrate the coherent control and electrical readout of ionized phosphorus donor nuclear spins in Si-nat. By combining time-programed optical excitation with coherent electron spin manipulation, we selectively ionize the donors depending on their nuclear spin state, exploiting a spin-dependent recombination process at the Si=SiO2 interface, and find a nuclear spin coherence time of 18 ms for the ionized donors. The presented technique allows for spectroscopy of ionized-donor nuclear spins and enhances the sensitivity of electron nuclear double resonance to a level of 3000 nuclear spins.
- 出版日期2012-1-11
