Temperature dependence of the Fano effect in quantum wires with short- and finite-range impurities
Temperature dependence of the Fano effect in quantum wires with short- and finite-range impurities
复制标题
具有短程和有限程杂质的量子线中法诺效应的温度依赖性
DOI：
--
复制
发表时间：
2007
期刊：
影响因子：
--
通讯作者：
H. Polatoglou
中科院分区：
文献类型：
--
作者：
V. Vargiamidis;H. Polatoglou
我们研究了具有短程或有限程吸引杂质的量子线电子输运中热效应对法诺共振的影响。结果表明，温度的影响（由于热展宽）变得越来越弱的有限范围杂质的大小增加。此外，对于两种类型的杂质，谐振宽度随着温度的增加几乎线性地增加。的（Fano）不对称参数的温度依赖性也检查。我们使用耦合通道理论的传输概率的计算。
We investigate thermal effects on the Fano resonances in electronic transport of a quantum wire with either short- or finite-range attractive impurities. It is shown that the effect of temperature (due to thermal broadening) becomes progressively weaker as the size of the finite-range impurity increases. Furthermore, the resonance width increases almost linearly with increasing temperature for both types of impurity. The temperature dependence of the (Fano) asymmetry parameter is also examined. We use a coupled-channel theory for the calculation of the transmission probability.