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:
Departments: Faculty of Science and Technology > Physics
ID Code: 124374
Deposited By: ep_importer_pure
Deposited On: 04 Apr 2018 10:54
Refereed?: No
Published?: Published
Last Modified: 14 Feb 2020 17:30
URI: https://eprints.lancs.ac.uk/id/eprint/124374

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