Abstract
Magnetic fluctuations caused by the nuclear spins of a host crystal are often the leading source of decoherence for many types of solid-state spin qubit. In group-IV semiconductor materials, the spin-bearing nuclei are sufficiently rare that it is possible to identify and control individual host nuclear spins. This Letter presents the first experimental detection and manipulation of a single nuclear spin. The quantum nondemolition single-shot readout of the spin is demonstrated, and a Hahn echo measurement reveals a coherence time of —in excellent agreement with bulk experiments. Atomistic modeling combined with extracted experimental parameters provides possible lattice sites for the atom under investigation. These results demonstrate that single nuclear spins could serve as a valuable resource in a silicon spin-based quantum computer.
- Received 14 July 2014
DOI:https://doi.org/10.1103/PhysRevLett.113.246801
© 2014 American Physical Society