Magneto-Optical Measurements of the Negatively Charged 2$s$ Exciton in WSe${}_2$

J. C. Sell, J. R. Vannucci, D. G. Suarez-Forero +8

Monolayer transition metal dichalcogenides host a variety of optically excited quasiparticles species that stem from two-dimensional confinement combined with relatively large carr…