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Berg, Timothy van den (2021)

Direct-write Printing Superconducting QUantum Interference Devices with Focused Electron Beam Induced Deposition

Master thesis | Physics (MSc)
Superconducting QUantum Interference Devices (SQUIDs) play a central role in numerous applications, ranging from cancer treatment to magnetic imaging of nanoparticles. Conventional fabrication methods revolve around a multi-step lithography process that encompasses etching, heating, chemical cleansing and coating, thereby limiting these techniques in practice. In this thesis we present a non-destructive alternative approach that does not entail pre- or post processing, namely, a direct-write printed SQUID patterned under 20 minutes using Focus Electron Beam Induced Deposition (FEBID). The Josephson behaviour of these devices is confirmed by performing out-of-plane magnetic field sweeps and measuring the corresponding oscillations in critical current. Our endeavours pave the way for printing sophisticated quantum systems and three dimensional superconducting sensors.
FEBID
SQUID
Author
Berg, Timothy van den
Faculty
Faculty of Science
Specialisation
Quantum Matter and Optics
Supervisors

Aarts, J.
Dood, M.

ECTS Credits
24
Language
en