High-resolution scanning SQUID microscope

High-resolution scanning SQUID microscope

We have combined a novel low temperature positioning mechanism with a single-chip miniature superconducting quantum interference device (SQUID) magnetometer to form an extremely sensitive new magnetic microscope, with a demonstrated spatial resolution of ∼10 μm. The design and operation of this scan...

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Bibliographic Details
Published in:Applied physics letters Vol. 66; no. 9; pp. 1138 - 1140
Main Authors: Kirtley, J. R., Ketchen, M. B., Stawiasz, K. G., Sun, J. Z., Gallagher, W. J., Blanton, S. H., Wind, S. J.
Format: Journal Article
Language:English
Published: 27-02-1995
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Summary:We have combined a novel low temperature positioning mechanism with a single-chip miniature superconducting quantum interference device (SQUID) magnetometer to form an extremely sensitive new magnetic microscope, with a demonstrated spatial resolution of ∼10 μm. The design and operation of this scanning SQUID microscope will be described. The absolute calibration of this instrument with an ideal point source, a single vortex trapped in a superconducting film, will be presented, and a representative application will be discussed.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.113838