Interaction of Strain and Nuclear Spins in Silicon: Quadrupolar Effects on Ionized Donors

David P. Franke, Florian M. Hrubesch, Markus Künzl, Hans Werner Becker, Kohei M Itoh, Martin Stutzmann, Felix Hoehne, Lukas Dreher, Martin S. Brandt

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19 Citations (Scopus)

Abstract

The nuclear spins of ionized donors in silicon have become an interesting quantum resource due to their very long coherence times. Their perfect isolation, however, comes at a price, since the absence of the donor electron makes the nuclear spin difficult to control. We demonstrate that the quadrupolar interaction allows us to effectively tune the nuclear magnetic resonance of ionized arsenic donors in silicon via strain and determine the two nonzero elements of the S tensor linking strain and electric field gradients in this material to S11=1.5×1022V/m2 and S44=6×1022V/m2. We find a stronger benefit of dynamical decoupling on the coherence properties of transitions subject to first-order quadrupole shifts than on those subject to only second-order shifts and discuss applications of quadrupole physics including mechanical driving of magnetic resonance, cooling of mechanical resonators, and strain-mediated spin coupling.

Original languageEnglish
Article number057601
JournalPhysical Review Letters
Volume115
Issue number5
DOIs
Publication statusPublished - 2015 Jul 29

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Franke, D. P., Hrubesch, F. M., Künzl, M., Becker, H. W., Itoh, K. M., Stutzmann, M., Hoehne, F., Dreher, L., & Brandt, M. S. (2015). Interaction of Strain and Nuclear Spins in Silicon: Quadrupolar Effects on Ionized Donors. Physical Review Letters, 115(5), [057601]. https://doi.org/10.1103/PhysRevLett.115.057601