SKM 2023 – scientific programme
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HL: Fachverband Halbleiterphysik
HL 7: Poster I
HL 7.17: Poster
Monday, March 27, 2023, 13:00–15:00, P2/EG
Persistent spectral holeburning of the donor-bound exciton transition in ultra-pure 28Si:P — •Nico Eggeling1, Michael Oestreich1, Eduard Sauter1, Jens Huebner1, and N. V. Abrosimov2 — 1Leibniz Universität Hannover, Germany — 2IKZ Berlin, Germany
We utilize persistent spectral hole burning to determine the origin of dynamic and static spectral broadening of the donor-bound exciton transition in ultra-pure 28Si:P with 99.995% isotopic enrichment [1]. From time-dependent measurements of the spectral hole width and frequency shift we try to determine the impact of donor-acceptor interaction on the spectral transition broadening. The donor-acceptor pair recombination is on the order of seconds in the investigated sample with a donor concentration of 1.2×1015cm−3 and an acceptor concentration of estimately 4.6(10)×1013cm−3. We expect to observe an impact of the recombination dynamics on the measured frequency and width of spectral holes. These results could lead to a better understanding of spin initialization for donors in 28Si:P, which are a promising candidate for quantum computation [2].
[1] Sauter, E., Abrosimov, N. V., Hübner, J., & Oestreich, M., Phys. Rev. Lett. 126(13), 137402 (2021).
[2] Morello, A. et al., Adv. Quant. Tech. 3(11), 2000005 (2020).