Resolving spin-orbit- and hyperfine-mediated electric dipole spin resonance in a quantum dot
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 the magnetic field. Simulations support the interpretation of the line shape in terms of four different resonance conditions. These findings may lead to isotope-selective control of dynamic nuclear polarization in quantum dots. © 2013 American Physical Society.
Date Published
Journal
Physical Review Letters
Volume
110
Issue
10
URL
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84874594961&doi=10.1103%2fPhysRevLett.110.107601&partnerID=40&md5=23546a67b74189580628275d6ec141ee
DOI
10.1103/PhysRevLett.110.107601
Research Area
Group (Lab)
Katja Nowack Group