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. Author manuscript; available in PMC: 2019 May 20.
Published in final edited form as: Phys Rev Lett. 2018 Dec 14;121(24):246801. doi: 10.1103/PhysRevLett.121.246801

FIG. 3.

FIG. 3.

(a),(b) PL spectra of X− in a 6 T magnetic field for two other QDs, showing the variation in hole ɡ factor and polarization. The Fabry-Perot resolution is 9 μeV for these measurements. (c) Hole spin splitting (solid circles) as a function of time under mechanical driving for these two QD-cantilever systems, with sine function fits. The average drive power is 20 μW. (d) Change in the hole Zeeman energy divided by the change in the optical transition energy for 8 different QDs. For red circles, only one set of lines could be measured (inner or outer), so ΔEe is assumed to be negligible to find ΔEh. Closed (open) circles indicate the hole and optical transition shifts are in phase (out of phase). The average drive power varies from 20–40 μW for different QDs, and the PL laser power is 5 μW for all QDs.