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Relaxometry and dephasing imaging of superparamagnetic magnetite nanoparticles using a single qubit

Abstract:

To study the magnetic dynamics of superparamagnetic nanoparticles, we use scanning probe relaxometry and dephasing of the nitrogen vacancy (NV) center in diamond, characterizing the spin noise of a single 10 nm magnetite particle. Additionally, we show the anisotropy of the NV sensitivity's dependence on the applied decoherence measurement method. By comparing the change in relaxation (T1) and dephasing (T2) time in the NV center when scanning a nanoparticle over it, we are able to extract th...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1021/acs.nanolett.5b00679

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Materials
Role:
Author
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Alexander von Humboldt-Stiftung More from this funder
Baden-Württemberg Foundation More from this funder
Deutsche Forschungsgemeinschaft More from this funder
European Research Council More from this funder
Defense Advanced Research Projects Agency More from this funder
Publisher:
American Chemical Society Publisher's website
Journal:
Nano letters Journal website
Volume:
15
Issue:
8
Pages:
4942–4947
Publication date:
2015-08-01
Acceptance date:
2015-05-11
DOI:
ISSN:
1530-6984 and 1530-6992
Pmid:
26218205
Source identifiers:
558516
Language:
English
Keywords:
Pubs id:
pubs:558516
UUID:
uuid:34394455-e51a-448d-8412-583dd983d13e
Local pid:
pubs:558516
Deposit date:
2016-10-17

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