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Magnetic field dependence of the internal quality factor and noise performance of lumped-element kinetic inductance detectors

Abstract:

We present a technique for increasing the internal quality factor of kinetic inductance detectors (KIDs) by nulling ambient magnetic fields with a properly applied magnetic field. The KIDs used in this study are made from thin-film aluminum, they are mounted inside a light-tight package made from bulk aluminum, and they are operated near 150 mK. Since the thin-film aluminum has a slightly elevated critical temperature (Tc ¼ 1.4 K), it therefore transitions before the package (Tc ¼ 1.2 K), whi...

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Publication status:
Published
Peer review status:
Peer reviewed

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Files:
Publisher copy:
10.1063/1.4964119

Authors


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Role:
Author
ORCID:
0000-0002-2861-8860
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Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Sub department:
Astrophysics
Department:
Unknown
Role:
Author
ORCID:
0000-0001-8071-6735
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Role:
Author
ORCID:
0000-0002-7530-1030
Publisher:
AIP Publishing
Journal:
Applied Physics Letters More from this journal
Volume:
109
Issue:
14
Article number:
143503
Publication date:
2016-10-03
Acceptance date:
2016-09-20
DOI:
EISSN:
1077-3118
ISSN:
0003-6951
Language:
English
Keywords:
Pubs id:
pubs:922907
UUID:
uuid:0e0ad98c-6464-4028-b4c9-8f5953190d20
Local pid:
pubs:922907
Source identifiers:
922907
Deposit date:
2019-01-29

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