Gallop, J C; Josephs-Franks, P W; Davies, J; Hao, L; Macfarlane, J* (2002) Miniature dc SQUID devices for the detection of single atomic spin-flips. Physica C, 368. pp. 109-113.

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Abstract

We report progress towards a superconducting quantum interference device (SQUID) based system capable of detecting single atomic spin-flips. The scaling of the flux sensitivity with SQUID loop dimensions of miniature Nb dc SQUIDs is examined and shown experimentally to vary as predicted. Our smallest device, with loop size 3 x 3 µm², is capable of detecting a few spins in a 1 Hz bandwidth. We address the task of depositing a sample, of nanoscale dimensions, within SQUID loop.

Item Type:	Article
Keywords:	SQUID, electronic spin, scanned probe microscopy
Subjects:	Quantum Phenomena Quantum Phenomena > Quantum Information Processing and Communication
Last Modified:	02 Feb 2018 13:17
URI:	https://eprintspublications.npl.co.uk/id/eprint/2287