Resolving Spin-Orbit and Hyperfine Mediated Electric Dipole Spin Resonance in a Quantum Dot
Quantum Physics
2013-06-27 v2 Mesoscale and Nanoscale Physics
Abstract
We investigate the electric manipulation of a single electron spin in a single gate-defined quantum dot. We observe that so-far neglected differences between the hyperfine and spin-orbit mediated electric dipole spin resonance conditions have important consequences at high magnetic fields. In experiments using adiabatic rapid passage to invert the electron spin, we observe an unusually wide and asymmetric response as a function of magnetic field. Simulations support the interpretation of the lineshape in terms of four different resonance conditions. These findings may lead to isotope-selective control of dynamic nuclear polarization in quantum dots.
Cite
@article{arxiv.1207.3331,
title = {Resolving Spin-Orbit and Hyperfine Mediated Electric Dipole Spin Resonance in a Quantum Dot},
author = {M. Shafiei and K. C. Nowack and C. Reichl and W. Wegscheider and L. M. K. Vandersypen},
journal= {arXiv preprint arXiv:1207.3331},
year = {2013}
}