会议论文详细信息
19th International Conference on Electron Dynamics in Semiconductors, Optoelectronics and Nanostructures | |
Confined acoustic phonon-mediated spin relaxation in a twodimensional quantum dot in the presence of perpendicular magnetic field | |
Vardanyan, K.A.^1 ; Vartanian, A.L.^1 ; Stepanyan, A.G.^1 ; Kirakosyan, A.A.^1 | |
Department of Solid State Physics, Yerevan State University, A.Manoogian, Yerevan | |
0025, Armenia^1 | |
关键词: Acoustic-phonon scattering; Confined acoustic phonons; Electron coupling; Electron Hamiltonian; Exact diagonalization; Perpendicular magnetic fields; Spin relaxation time; Spin-orbit couplings; | |
Others : https://iopscience.iop.org/article/10.1088/1742-6596/647/1/012043/pdf DOI : 10.1088/1742-6596/647/1/012043 |
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来源: IOP | |
【 摘 要 】
The spin-relaxation time due to the electron-acoustic phonon scattering in GaAs quantum dots is studied after the exact diagonalization of the electron Hamiltonian with the spin-orbit coupling. It has been shown that in comparison with flexural phonons, the electron coupling with the dilatational phonons causes 3 orders faster spin relaxation. We have found that the relaxation rate of the spin-flip is an order of magnitude smaller than that of the spin- conserving.
【 预 览 】
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Confined acoustic phonon-mediated spin relaxation in a twodimensional quantum dot in the presence of perpendicular magnetic field | 1128KB | download |