Quadrupolar excitons in MoSe₂ bilayers.

ABSTRACT: The quest for platforms to generate and control exotic excitonic states has greatly benefited from the advent of transition metal dichalcogenide (TMD) monolayers and their heterostructures. Among the unconventional excitonic states, quadrupolar excitons-a superposition of two dipolar excitons with anti-aligned dipole moments-are of great interest for applications in quantum simulations and for the investigation of many-body physics. Here, we unambiguously demonstrate the emergence of quadrupolar excitons in natural MoSe₂ homobilayers, whose energy shifts quadratically in electric field. In contrast to trilayer systems, MoSe₂ homobilayers have many advantages, which include a larger coupling between dipolar excitons. Our experimental observations are complemented by ma

SUBMITTER: Jasinski J 

PROVIDER: S-EPMC11799382 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature