Electron states in modulated nanowires
Electron states in modulated nanowires
复制标题
调制纳米线中的电子态
DOI：
10.1063/1.1574589
复制
发表时间：
2003
影响因子：
3.2
通讯作者：
M. Willatzen
中科院分区：
文献类型：
--
作者：
L. Voon;M. Willatzen
提出了一种调制纳米线中电子的理论。我们表明，这些结构是从根本上不同的普通纳米线和量子阱结构在其电子，光学和输运性质。我们发现，电子发射实验只能测量一个有效的势垒高度。结果表明，子带间跃迁的极化是可以控制的。我们还预测了一种由横向约束引起的纵向局域化效应，并给出了一个简单的判据。这对可能用于光电应用的纳米线的半径设置了下限。此外，它对共振隧穿的影响被证明。
A theory of electrons in modulated nanowires is presented. We show that these structures are radically different from plain nanowires and quantum-well structures in their electronic, optical, and transport properties. We find that thermionic emission experiments only measure an effective barrier height. It is shown that the polarization of intersubband transitions can be controlled. We also predict a type of longitudinal localization effect induced by lateral confinement and give a simple criterion for its occurrence. This places a lower limit on the radii of nanowires that might be useful for optoelectronic applications. Furthermore, its impact on resonant tunneling is demonstrated.
影响因子：
4
作者：
WEST, LC;EGLASH, SJ
通讯作者：
EGLASH, SJ