Magneto-Optical Measurements of the Negatively Charged 2s Exciton in WSe2

Phys. Rev. B 106, L081409 (2022)https://ireap.umd.edu/10.1103/PhysRevB.106.L0814092022Journal ArticleNonlinear and Quantum Photonics

Monolayer transition metal dichalcogenides (TMDs) host a variety of optically excited quasiparticle species that stem from two-dimensional confinement combined with relatively large carrier effective masses and reduced dielectric screening. The magnetic response of these quasiparticles gives information on their spin and valley configurations, nuanced carrier interactions, and insight into the underlying band structure.