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Hyperfine-mediated gate-driven electron spin resonance.

Abstract:

An all-electrical spin resonance effect in a GaAs few-electron double quantum dot is investigated experimentally and theoretically. The magnetic field dependence and absence of associated Rabi oscillations are consistent with a novel hyperfine mechanism. The resonant frequency is sensitive to the instantaneous hyperfine effective field, and the effect can be used to detect and create sizable nuclear polarizations. A device incorporating a micromagnet exhibits a magnetic field difference betwe...

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Publication status:
Published

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Institution:
University of Oxford
Department:
Oxford, MPLS, Materials
Barthel, C More by this author
Rashba, EI More by this author
Marcus, CM More by this author
Hanson, MP More by this author
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Journal:
Physical review letters
Volume:
99
Issue:
24
Pages:
246601
Publication date:
2007-12-05
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:e0fb0b72-025a-48fe-a40b-ac5496eb2df0
Source identifiers:
414494
Local pid:
pubs:414494
Language:
English

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