5 papers
Electron Spin Dephasing and Optical Pumping of Nuclear Spins in GaN
G. Wang, C. R. Zhu, B. L. Liu +6
We have measured the donor-bound electron spin dynamics in cubic GaN by time-resolved Kerr rotation experiments. The ensemble electron spin dephasing time in this quantum dot like…
Voltage control of electron-nuclear spin correlation time in a single quantum dot
J. Nilsson, L. Bouet, A. J. Bennett +8
We demonstrate bias control of the hyperfine coupling between a single electron in an InAs quantum dot and the surrounding nuclear spins monitored through the positively charged ex…
L-valley Electron Spin Dynamics in GaAs
T. Zhang, P. Barate, C. T. Nguyen +6
Optical orientation experiments have been performed in GaAs epilayers with photoexcitation energies in the 3 eV region yielding the photogeneration of spin-polarized electrons in t…
Dark-bright mixing of interband transitions in symmetric semiconductor quantum dots
G. Sallen, B. Urbaszek, M. M. Glazov +10
In photoluminescence spectra of symmetric [111] grown GaAs/AlGaAs quantum dots in longitudinal magnetic fields applied along the growth axis we observe in addition to the expected…
Controlling the Interaction of Electron and Nuclear Spins in a Tunnel-Coupled Quantum Dot
C. Kloeffel, P. A. Dalgarno, B. Urbaszek +5
We present a technique for manipulating the nuclear spins and the emission polarization from a single optically active quantum dot. When the quantum dot is tunnel coupled to a Ferm…