Spin Effect of the Bound Magnetopolaron in an Asymmetry Quantum Well

The spin effect of bound magnetopolaron in an asymmetry quantum well is studied by Pekar variational method. The expression of the ground state energy of bound magnetopolaron is obtained through theoretical derivation. The relationship between the ground state energy of the polaron and the wave vector, the well width, the magnetic field cyclotron resonance frequency, and the Coulomb bound potential are discussed, respectively. Due to the crystal structural inversion asymmetry and the time inversion asymmetry, the polaron energy occurs Rashba spin–orbit splitting and Zeeman splitting. Under the strong and weak magnetic fields, we discussed the dominant position of Rashba effect and Zeeman effect, respectively. Due to the presence of impurities, the polaron is more stable than the bare electron state, and the energy splitting of polaron is more stable.