Polar optical oscillations in quantum wires and free-standing wires: the electron-phonon interaction Hamiltonian
Polar optical oscillations in quantum wires and free-standing wires: the electron-phonon interaction Hamiltonian
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量子线和独立线中的极性光学振荡：电子-声子相互作用哈密顿量
DOI：
10.1088/0953-8984/7/9/006
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发表时间：
1995
期刊：
影响因子：
--
通讯作者：
M. Moshinsky
中科院分区：
文献类型：
--
作者：
F. Comas;A. Cantarero;C. Trallero;M. Moshinsky
通过将长波极性光振荡的唯象理论应用于介观层状半导体结构，计算了量子线和自由线的简正模，采用圆柱几何，半径为r 0的圆形截面。计算了不同模式下的位移场u和电势φ，并给出了色散关系曲线。分析了GaAs/AlAs结构的情况。我们只限于研究垂直于金属丝轴线的振荡。利用二次量子化方法导出了电子-声子相互作用的哈密顿量。
By applying a phenomenological theory for long-wavelength polar optical oscillations to mesoscopic layered semiconductor structures, we calculate the normal modes of a quantum wire and of a free-standing wire, the cylindrical geometry is adopted with circular cross-section of radius r0. The displacement field u and the electric potential phi are calculated for the different modes, as well as the dispersion relation curves. The case of the GaAs/AlAs structure is analysed. We limit ourselves to the study of oscillations perpendicular to the wire axis. The electron-phonon interaction Hamiltonian is derived for the present problem using the second-quantization formalism.