Multiple Nuclear Polarization States in a Double Quantum Dot

Details Multiple Nuclear Polarization States in a Double Quantum Dot Multiple Nuclear Polarization States in a Double Quantum Dot

2009-02-16

arxiv.org/abs/0902.2653v2

Phys. Rev. Lett. 103, 046601 (2009)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 4 figures, 7 pages supplementary material

Scientific paper

We observe multiple stable states of nuclear polarization in a double quantum dot under conditions of electron spin resonance. The stable states can be understood within an elaborated theoretical rate equation model for the polarization in each of the dots, in the limit of strong driving. This model also captures unusual features of the data, such as fast switching and a `wrong' sign of polarization. The results reported enable applications of this polarization effect, including manipulation and control of nuclear fields.

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