Magneto-optical transitions in monolayer molybdenum disulphide on polar substrates

Within the frame of the Huang-Rhys's lattice relaxation model, we theoretically studied the effects of lattice relaxation due to the electrons (holes)-surface optical (SO) phonons coupling on the magneto-optical (MO) transitions in monolayer molybdenum disulphide on three different types of polar substrates. The lattice relaxation resulted in the peak position shifting and the linewidths broadening in MO transitions. The dependences of MO transitions on the magnetic field, temperature and polarization strength of substrates have been discussed in detail. The obtained results may provide a possible method to measure the coupling strength between the electrons (holes) and SO phonons in MO experiments.