Tartakovskii, A.I., Wright, T., Russell, A. et al. (10 more authors) (2007) Nuclear spin switch in semiconductor quantum dots. Physical Review Letters , 98 (2). 026806. ISSN 0031-9007
Abstract
We show that by illuminating an InGaAs / GaAs self-assembled quantum dot with circularly polarized light, the nuclei of atoms constituting the dot can be driven into a bistable regime, in which either a thresholdlike enhancement or reduction of the local nuclear field by up to 3 T can be generated by varying the pumping intensity. The excitation power threshold for such a nuclear spin “switch” is found to depend on both the external magnetic and electric fields. The switch is shown to arise from the strong feedback of the nuclear spin polarization on the dynamics of the spin transfer from electrons to the nuclei of the dot.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2007 The American Physical Society. This is an author produced version of a paper subsequently published in Physical Review Letters. Uploaded in accordance with the publisher's self-archiving policy. |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield) The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 25 Aug 2017 10:39 |
Last Modified: | 28 Mar 2018 20:30 |
Published Version: | https://doi.org/10.1103/PhysRevLett.98.026806 |
Status: | Published |
Publisher: | American Physical Society |
Refereed: | Yes |
Identification Number: | 10.1103/PhysRevLett.98.026806 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:120583 |