Design of a piezoelectric controller and magnetotransport experiments in Co3Sn2S2 Weyl semimetal

Doat, Matthieu
(2026)

Files

Doat_68732100_2026.pdf
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Details

Supervisors
Gehring, Pascal
Faculty
Ecole polytechnique de Louvain
Degree label
Master [120] : ingénieur civil électricien, à finalité spécialisée
Abstract
enThis thesis investigates the angle-dependent magnetotransport properties of a Co3Sn2S2 ferromagnetic Weyl semimetal thin film at cryogenic temperatures. To enable angle-resolved measurements, a cryogenic insert incorporating a piezoelectric rotary positioner is designed and fabricated, together with a custom electronic controller validated by LTspice simulation, assembled on a custom PCB, and calibrated to a position accuracy of 0.215◦. Three experiments are conducted on a Co3Sn2S2/SnS thin film.