The diffracted distribution of classical trajectories and interference between electrons
| Autor: | Xiangji Cai, Yanhui Zhang, Xiulan Xu, Lisha Kang, Guo-Peng Zhao |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Diffraction
Physics Semiclassical physics Coherent backscattering Electron Condensed Matter Physics Interference (wave propagation) 01 natural sciences Atomic and Molecular Physics and Optics 010305 fluids & plasmas Electronic Optical and Magnetic Materials Transverse plane Distribution (mathematics) Quantum mechanics 0103 physical sciences Path (graph theory) 010306 general physics |
| Zdroj: | Physica E: Low-dimensional Systems and Nanostructures. 84:10-15 |
| ISSN: | 1386-9477 |
| DOI: | 10.1016/j.physe.2016.05.031 |
| Popis: | We use a semiclassical approximation to study the escape of electrons through a circular mesostructure with the diffractive effect at the entrance lead taken into consideration. We find that the fluctuating shapes of the escape probability manifests a good agreement with the diffracted distributions of the incident angles for different transverse modes, and show that several classical trajectories with certain lengths have prominent contributions on the escape probability. In addition, we define the coherence factor to investigate the interference between electrons for different transverse modes and we find that it is the coherent backscattering that is responsible for the prominent interference. Moreover, we find there is a good correspondence between the distribution of classical trajectories and the time-reversed path. |
| Databáze: | OpenAIRE |
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