Leiden University Student Repository

Deelen, Koen van (2022)

Multi-LC: Designing a Multi Resonator Circuit to Enable Multi-frequency Readout of STM Current Noise in the MHz Regime with a SQUID

Master thesis | Physics (MSc)

This project follows a design that aims at enabling multi-frequency readout of STM current noise in the MHz regime, with future prospects to amplify and record such signals with a SQUID amplifier. The design consists of multiple LC resonators to allow multi-frequency readout. Design choices, freedoms and restrictions are noted and a method to built and test the model is given. Steps are taken to allow testing of a SQUID readout experiment inside a dry dilution cryostat and the dynamic range of the SQUID is calculated and compared to typical STM (noise) currents. Mainly the feasibility of the design is studied and further effort to quantitatively explore the design is suggested.

SQUID

STM

multi resonator

LC

resonator

Author

Deelen, Koen van

Faculty

Faculty of Science

Supervisors

Oosterkamp, T.H.

ECTS Credits

24

Language

en