2026/01/08 by Francesca Urban, Stefano Ippolito, Jane Frostad +6 · 1 voice
Materials Science · #MXene and MAX Phase Materials #2D Materials and Applications #Graphene research and applications
paper · pdf · doi:10.1021/acsaelm.5c01847
openalex publication_date 2026/01/08 · openalex created_date 2026/01/09 · openalex updated_date 2026/08/01
High Resolution Image Download MS PowerPoint Slide The exploration of MXenes for electronic applications is a rapidly growing field in materials science. However, most research has focused on MXene films, with only a limited number of studies addressing the characterization of single-flake devices. In this work, we investigate the electronic and magnetotransport properties of Ti 3 C 2 T x single-flake devices, exploring the influence of structural defectivity on their transport mechanisms. We show that negative magnetoresistance present at low temperatures in single flake samples arises from weak localization, which we analyze to extract the phase coherence length of single-layer and multi-layer flakes. The study of magnetoresistance for this metallic MXene shows that the material exhibits quantum transport phenomena when intrinsic electronic behavior dominates. Moreover, by increasing the defect density via thermal annealing in ultrahigh vacuum, we uncover and characterize the metal-to-disordered metal transition in Ti 3 C 2 T x, shedding light on new properties and enriching fundamental knowledge about MXenes.