By Amit Finkler

Common tools of neighborhood magnetic imaging demonstrate both a excessive spatial answer and comparatively negative box sensitivity (MFM, Lorentz microscopy), or a comparatively excessive box sensitivity yet restricted spatial answer (scanning SQUID microscopy). because the magnetic box of a nanoparticle or nanostructure decays swiftly with distance from the constitution, the a possibility spatial solution is eventually constrained by way of the probe-sample separation. This thesis offers a unique strategy for fabricating the smallest superconducting quantum interference equipment (SQUID) that is living at the apex of a truly sharp tip. The nanoSQUID-on-tip monitors a attribute measurement right down to a hundred nm and a box sensitivity of 10^-3 Gauss/Hz^(1/2). A scanning SQUID microsope was once built by means of gluing the nanoSQUID-on-tip  to a quartz tuning-fork. This enabled the nanoSQUID to be scanned inside of nanometers of the pattern floor, offering simultaneous photos of pattern topography and the magnetic box distribution. This microscope represents an important development over the present scanning SQUID suggestions and is anticipated with a view to snapshot the spin of a unmarried electron.

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Scanning SQUID Microscope for Studying Vortex Matter in Type-II Superconductors (Springer Theses) by Amit Finkler


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