Retrieval of material properties of monolayer transition metal dichalcogenides from magnetoexciton energy spectra

Reduced exciton mass, polarizability, and dielectric constant of the surrounding medium are essential properties for semiconducting materials, they have been extracted recently from magnetoexciton energies. However, acceptable accuracy suggested method requires very high magnetic intensity. Therefore, in present paper, we propose an alternative extracting these material available experimental s-state energies monolayer transition-metal dichalcogenides (TMDCs). The is based on sensitivity to parameters Rytova-Keldysh model. It allows us vary considered get best fit theoretical calculation $1s$, $2s$, $3s$ states. This procedure gives values reduced mass $2D$ polarizability. Then, spectra compared also determine average constant. Concrete applications presented only monolayers WSe$_2$ WS$_2$ data; however, approach universal can be applied other TMDCs. mentioned fitting a fast effective solving Schr\"{o}dinger equation TMDCs with field. develop such this paper highly accurate