排序方式: 共有3条查询结果,搜索用时 15 毫秒
1
1.
2.
Fano Effect and Anti-Resonance Band in a Parallel-Coupled Double Quantum Dot System with Two Multi-Quantum Dot Chains
下载免费PDF全文
![点击此处可从《中国物理快报》网站下载免费的PDF全文](/ch/ext_images/free.gif)
A parallel-coupled double quantum dot(PCDQD) system with two multi-quantum dot chains is designed. Conductance versus Fermi energy level is investigated utilizing the non-equilibrium Green's function approach. If two quantum dots are added on each side of the PCDQD system, additional Breit–Wigner and Fano resonances occur in the conductance spectra. If quantum dots are added on one side of the system, small Fano resonances can be observed in the conductance spectra. Adjusting the number of side-coupled quantum dots, the anti-resonance bands emerge at different positions, which makes the system applicable as a quantum switching device. Moreover,the I–V characteristic curve presents the step characteristic and the width of the step decreases with increasing the number of side-coupled quantum dots. 相似文献
3.
Fano Effect and Spin-Polarized Transport in a Triple-Quantum-Dot Interferometer Attached to Two Ferromagnetic Leads
下载免费PDF全文
![点击此处可从《中国物理快报》网站下载免费的PDF全文](/ch/ext_images/free.gif)
We report the conductance and average current through a triple-quantum-dot interferometer coupled with two ferromagnetic leads using the nonequilibrium Green’s function.The results show that the interference between the resonant process and the non-resonant process leads to the formation of Fano resonance.More Fano resonances can be observed by applying a time-dependent external field.As a Zeeman magnetic field is applied, the spin-up electron transport is depressed in a certain range of electro... 相似文献
1