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

Laird, E A and Barthel, C and Rashba, E I and Marcus, C M and Hanson, M P and Gossard, A C (2009) A new mechanism of electric dipole spin resonance:hyperfine coupling in quantum dots. Semiconductor Science and Technology, 24 (6). ISSN 0268-1242

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Abstract

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 in either dot to be addressed selectively. An unexplained additional signal at half the resonant frequency is presented.

Item Type:
Journal Article
Journal or Publication Title:
Semiconductor Science and Technology
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3104
Subjects:
ID Code:
124374
Deposited By:
Deposited On:
04 Apr 2018 10:54
Refereed?:
No
Published?:
Published
Last Modified:
29 Oct 2020 06:19