A new mechanism of electric dipole spin resonance: hyperfine coupling in quantum dots

  title={A new mechanism of electric dipole spin resonance: hyperfine coupling in quantum dots},
  author={Edward A. Laird and Christian Barthel and Emmanuel I. Rashba and Charles M. Marcus and Micah P. Hanson and Arthur C. Gossard},
  journal={Semiconductor Science and Technology},
A 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… 

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