A New Mechanism of Electric Dipole Spin Resonance: Hyperfine Coupling in Quantum Dots
Laird, Edward A.
Hanson, M. P.
Gossard, Arthur C.
MetadataShow full item record
CitationLaird, Edward A., Christian Barthel, Emmanuel Rashba, Charles M. Marcus, M. P. Hanson, and Arthur C. Gossard. 2009. A new mechanism of electric dipole spin resonance: hyperfine coupling in quantum dots. Semiconductor Science and Technology 24(064004).
AbstractA recently discovered mechanism of electric dipole spin resonance, mediated by the hyperfine interaction, is investigated experimentally and theoretically. The effect is studied using a spin-selective transition in a GaAs double quantum dot. The resonant frequency is sensitive to the instantaneous hyperfine effective field, revealing a nuclear polarization created by driving the resonance. A device incorporating a micromagnet exhibits a magnetic field difference between dots, allowing electrons in either dot to be addressed selectively. An unexplained additional signal at half the resonant frequency is presented.
Citable link to this pagehttp://nrs.harvard.edu/urn-3:HUL.InstRepos:5110753
- FAS Scholarly Articles