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The Diamond Superconducting Quantum Interference Device

Mandal, Soumen, Bautze, Tobias, Williams, Oliver Aneurin, Naud, Cecile, Bustarret, Etienne, Omnes, Franck, Rodiere, Pierre, Meunier, Tristan, Baüerle, Christopher and Saminadayar, Laurent 2011. The Diamond Superconducting Quantum Interference Device. ACS Nano 5 (9) , pp. 7144-7148. 10.1021/nn2018396

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Diamond is an electrical insulator in its natural form. However, when doped with boron above a critical level (0.25 atom %) it can be rendered superconducting at low temperatures with high critical fields. Here we present the realization of a micrometer-scale superconducting quantum interference device (μ-SQUID) made from nanocrystalline boron-doped diamond (BDD) films. Our results demonstrate that μ-SQUIDs made from superconducting diamond can be operated in magnetic fields as large as 4 T independent of the field direction. This is a decisive step toward the detection of quantum motion in a diamond-based nanomechanical oscillator.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Q Science > QC Physics
Uncontrolled Keywords: Diamond; SQUID; Superconductivity; Nanofabrication
Publisher: ACS Publications
ISSN: 1936-0851
Last Modified: 04 Jun 2017 02:00

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