Energy levels of magneto-optical polaron in spherical quantum dot——Part 1: Strong coupling

• 作 者: A.J.Fotue S.C.Kenfack N.Issofa M.Tiotsop H.Fotsin E.Mainimo L.C.Fai
• 机 构: Mesoscopic and Multilayers Structures Laboratory,Department of Physics,Faculty of Science,University
• 出 处: Journal of Semiconductors
• 发表日期: 2015年09期
• 关键词: magnetic field total momentum modified LLP polaron energy quantum dot

We investigate the influence of a magnetic field on the ground state energy of a polaron in a spherical semiconductor quantum dot(QD) using the modified LLP method. The ground state energy is split into sub-energy levels and there is a degeneracy of energy levels. It is also observed that the degenerate energy increase with the electron–phonon coupling constant and decrease with the magnetic field. The numerical results show that, under the influence of magnetic field and the interaction with the total momentum along the z-direction, the split energy increases and decreases with the longitudinal and the transverse confinement length, respectively.

We investigate the influence of a magnetic field on the ground state energy of a polaron in a spherical semiconductor quantum dot (QD) using the modified LLP method. The ground state energy is split into sub-energy levels and there is a degeneracy of energy levels The is also observed that the degenerate energy increase with the electron-phonon coupling constant and decrease with the magnetic field. The numerical results show that under the influence of magnetic field and the interaction with the total momentum along the z-direction, the split energy increases and decreases with the longitudinal and the transverse confinement length, respectively.