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Magnetic field sensing using a driven double quantum dot

Abstract:

A microwave-driven double dot system is investigated as a detector for probing a magnetic field gradient. The two dots are connected to metallic leads and a source-drain current flows under microwave irradiation. The induced current as a function of the external magnetic field exhibits resonance effects that depend directly on the local field gradient and any difference in the g-factors between the dots. The properties of the dot detector with respect to temperature, interdot hopping and the ...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1016/j.physe.2009.11.138

Authors


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Institution:
University of Oxford
Department:
Mathematical,Physical & Life Sciences Division - Materials
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Institution:
University of Cambridge
Department:
Cavendish Laboratory,Department of Physics
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Institution:
University of Oxford
Department:
Mathematical,Physical & Life Sciences Division - Materials
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Institution:
QinetiQ Technology Centre, Malvern, UK
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Institution:
University of Oxford
Department:
Mathematical,Physical & Life Sciences Division - Materials
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Funding agency for:
G. Giavaras
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Funding agency for:
B. W. Lovett
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Funding agency for:
J. H. Jefferson
Publisher:
Elsevier Publisher's website
Journal:
Physica E Journal website
Volume:
42
Issue:
4
Pages:
895-898
Publication date:
2010-02-05
DOI:
ISSN:
1386-9477
URN:
uuid:23af3b48-d5a0-4941-9df4-09c6ecd3260e
Local pid:
ora:3637

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