Wave vector filtering effect for electrons in magnetically and electrically confined semiconductor heterostructure
| Autor: | Xin-Hong Huang, Mao-Wang Lu, Dong-Hui Liang, Meng-Rou Huang, Zeng-Lin Cao |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science Condensed matter physics business.industry Statistical and Nonlinear Physics Heterojunction 02 engineering and technology Electron Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Semiconductor Ferromagnetism 0103 physical sciences Wave vector 0210 nano-technology business |
| Zdroj: | Modern Physics Letters B. 34:2050080 |
| ISSN: | 1793-6640 0217-9849 |
| Popis: | Wave vector filtering effect is explored for electrons in magnetically and electrically confined semiconductor heterostructure, which can be realized experimentally by depositing a ferromagnetic stripe and a Schottky metal stripe in parallel configuration on the surface of [Formula: see text] heterostructure. Adopting improved transfer matrix method to solve Schrödinger equation, electronic transmission coefficient is calculated exactly, and then wave vector filtering efficiency is obtained by differentiating transmission probability over longitudinal wave vector. An obvious wave vector filtering effect appears, due to an essentially two-dimensional process for electron transmission through a magnetic nanostructure. Besides, wave vector filtering efficiency is associated closely with width, position and externally applied voltage of Schottky metal stripe, which makes wave vector filtering effect become controllable and results in a manipulable momentum filter for nanoelectronics. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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