Exchange Control of Nuclear Spin Diffusion in a Double Quantum Dot

Author(s)
Reilly, D. J.; Taylor, J. M.; Petta, J. R.; Marcus, Charles M.; Hanson, Micah P.; ... Show more
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Abstract
The influence of gate-controlled two-electron exchange on the relaxation of nuclear polarization in small ensembles (N∼10[superscript 6]) of nuclear spins is examined in a GaAs double quantum dot system. Waiting in the (2,0) charge configuration, which has large exchange splitting, reduces the nuclear diffusion rate compared to that of the (1,1) configuration. Matching exchange to Zeeman splitting significantly increases the nuclear diffusion rate.
Date issued
2010-06
URI
http://hdl.handle.net/1721.1/65400
Department
Massachusetts Institute of Technology. Department of Physics
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Reilly, D. J. et al. “Exchange Control of Nuclear Spin Diffusion in a Double Quantum Dot.” Physical Review Letters 104.23 (2010) © 2010 The American Physical Society
Version: Final published version
ISSN
0031-9007
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