Spin Polarized Transport in Monolayer WSe2 Quantum Structures Abstract: Monolayer transition metal dichalcogenides (TMDs), a semiconducting member of the two-dimensional material family, have been suggested to be promising candidates for various quantum applications. However, challenges associated with the quality of electrical contacts in TMDs have hampered the progress of transport studies, especially at low temperature and in the low carrier density regime. In this talk, a device structure is presented which allows us to obtain low resistance ohmic contacts to monolayer TMDs while still accessing the low carrier density regime in transport experiments. The low-temperature magneto-transport measurements resulting from this fabricated device is presented and the unexpected spin polarized states are discussed.
Transport polarise de spin dans les structures quantiques monocouches WSe2 Resume : Il a ete suggere que les dichalcogenures de metaux de transition (TMD) monocouches, un membre semi-conducteur de la famille des materiaux bidimensionnels, seraient des candidats prometteurs pour diverses applications quantiques. Cependant, les defis associes a la qualite des contacts electriques dans les TMD ont entrave la progression des etudes de transport, en particulier a basse temperature et dans le regime de faible densite de porteurs. Dans cet expose, une structure de dispositif est presentee qui nous permet d'obtenir des contacts ohmiques a faible resistance avec des TMD monocouches tout en accedant au regime de faible densite de porteurs dans les experiences de transport. Les mesures de magneto-transport a basse temperature resultant de ce dispositif fabrique sont presentees et les etats polarises en spin inattendus sont discutes. [] About / A propos The High Throughput and Secure Networks (HTSN) Challenge program is hosting regular virtual seminar series to promote scientific information sharing, discussions, and interactions between researchers. https://nrc.canada.ca/en/research-development/research-collaboration/programs/high-throughput-secure-networks-challenge-program Le programme Reseaux Securises a Haut Debit (RSHD) organise regulierement des series de seminaires virtuels pour promouvoir le partage d'informations scientifiques, les discussions et les interactions entre chercheurs. https://nrc.canada.ca/fr/recherche-developpement/recherche-collaboration/programmes/programme-defi-reseaux-securises-haut-debit Co-sponsored by: National Research Council, Canada. Optonique. Speaker(s): Justin Boddison-Chouinard, Virtual: https://events.vtools.ieee.org/m/417651