The aim of this internship is to measure and strengthen the spin-orbit coupling in thin films made of MXenes, of formula Ti3C2Tx, which are 2D materials with a metallic character, unlike the usual 2D materials (graphene, TMD, etc.). The aim is to measure resistance variations at low temperature (2 K) and under magnetic field (9 T) in the weak localization regime (quantum interference of free electron wave functions). To do so, impurities with a strong spin-orbit coupling, such as low concentrations of gold or platinum atoms, will be deposited on top of the MXene layer in an evaporation chamber, before characterizing these thin films in the cryostat. The detection and manipulation of the strength of the spin-orbit coupling in MXenes would be a major first, paving the way for applications of these materials in spintronics.