Zeeman and hyperfine interactions of a single Er 3+ 167 ion in Si

Jiliang Yang, Wenda Fan, Yangbo Zhang, Changkui Duan, Gabriele G. De Boo, Rose L. Ahlefeldt, Jevon J. Longdell, Brett C. Johnson, Jeffrey C. McCallum, Matthew J. Sellars, Sven Rogge, Chunming Yin*, Jiangfeng Du

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    5 Citations (Scopus)


    Er-doped Si is a promising candidate for quantum information applications due to its telecom wavelength optical transition and its compatibility with Si nanofabrication technologies. Recent spectroscopic studies based on photoluminescence excitation have shown multiple well-defined lattice sites that Er occupies in Si. Here we report a measurement of the Zeeman and hyperfine tensors of a single Er3+167 ion in Si. All the obtained tensors are highly anisotropic with the largest value principal axes aligning in nearly the same direction, and the trace of the lowest crystal field level g-tensor is 17.78±0.40. The results indicate that this specific Er site is likely to be a distorted cubic site that exhibits monoclinic (C1) symmetry. Finally, zero first-order-Zeeman fields are identified for this site and could be used to reduce decoherence of hyperfine spin states in future experiments.

    Original languageEnglish
    Article number235306
    JournalPhysical Review B
    Issue number23
    Publication statusPublished - 15 Jun 2022


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