NDLI: High-T/sub c/ electronic planar gradiometer constructed from magnetometers on a chip

Content Provider	IEEE Xplore Digital Library
Author	Kuen-Lin Chen Jau-Han Chen Chuan-Chin Lin Chiu-Hsien Wu Ji-Cheng Chen Herng-Er Horng Hong-Chang Yang
Copyright Year	2002
Abstract	We have fabricated a high-T/sub c/ electronic planar gradiometer composed of dc SQUIDs on a 10 mm /spl times/ 10 mm SrTiO/sub 3/ bicrystal substrate. The SQUIDs were patterned in a single-layer YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// thin film which is prepared by pulsed laser deposition. The outputs of the magnetometers are added and subtracted by analog electronic circuits to form the gradiometer. These magnetometers could be used to construct two sets electronic planar first-order gradiometers or an electronic planar second-order gradiometer, which could measure the elements /spl part/B/sub z///spl part/x and /spl part/B/sub z///spl part/y or /spl part//sup 2/B/sub z///spl part/x/spl part/y, respectively. The noise spectra of each magnetometer and a first-order electronic planar gradiometer were measured.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	805
Ending Page	808
Page Count	4
File Size	152492
File Format	PDF
ISSN	10518223
Volume Number	15
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	SQUID magnetometers Substrates Pulsed laser deposition Magnetic field measurement Magnetic sensors Sputtering Optical pulses Electronic circuits Biomagnetics Biosensors magnetometer DC SQUID gradiometer
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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