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SCANNING SQUID MICROSCOPY

1999; Annual Reviews; Volume: 29; Issue: 1 Linguagem: Inglês

10.1146/annurev.matsci.29.1.117

2375-0308

J. R. Kirtley, John P. Wikswo,

Magnetic properties of thin films

▪ Abstract The scanning SQUID microscope (SSM) is a powerful tool for imaging magnetic fields above sample surfaces. It has the advantage of high sensitivity and bandwidth and the disadvantages of relatively modest spatial resolution and the requirement of a cooled SQUID sensor. We describe the various implementations of this type of instrument and discuss a number of applications, including magnetic imaging of short circuits in integrated circuits, corrosion currents in aluminum, and trapped flux in superconductors.