Scanning probe microscopy with SQUID-on-tip sensor

Ceccarelli, Lorenzo. Scanning probe microscopy with SQUID-on-tip sensor. 2020, Doctoral Thesis, University of Basel, Faculty of Science.


Official URL: https://edoc.unibas.ch/79793/

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In this thesis, we present the work developed in the past four years, on the fabrication, improvements and applications of a promising scanning probe technique, based on the SQUID technology. The nanoSQUID sensors improved drastically, but most of them lie on the plane of a large substrate and are therefore complicated to apply as scanning sensors. Although there have been demonstrations of magnetic imaging by scanning samples in proximity to such SQUIDs, the geometry is not amenable to a generally applicable microscopy. The nanoSQUIDs, that we used for our investigations, unlike conventional planar SQUIDs, can have diameters down to 50nm and are positioned on the apex of a sharp tip, hence their name a SQUID-on-tip (SOT).
Advisors:Poggio, Martino
Committee Members:De Teresa, José Maria
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Nanotechnologie Argovia (Poggio)
UniBasel Contributors:Ceccarelli, Lorenzo and Poggio, Martino
Item Type:Thesis
Thesis Subtype:Doctoral Thesis
Thesis no:13954
Thesis status:Complete
Number of Pages:129
Identification Number:
  • urn: urn:nbn:ch:bel-bau-diss139546
edoc DOI:
Last Modified:15 Jan 2021 05:30
Deposited On:14 Jan 2021 14:30

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