Anti-Resonance in a Laterally Coupled Triple-Quantum-Dot Chain
- Autores: Lu M.1, He Z.1, Chen K.2, Long X.1, Liu N.1
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Afiliações:
- School of Electronic and Information Engineering
- College of Materials Science and Engineering
- Edição: Volume 74, Nº 2 (2019)
- Páginas: 176-180
- Seção: Physics of Condensed State of Matter
- URL: https://journals.rcsi.science/0027-1349/article/view/165108
- DOI: https://doi.org/10.3103/S0027134919020115
- ID: 165108
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Resumo
Employing the nonequilibrium Green’s function technique, electron transport characteristics through a laterally coupled triple-quantum-dot chain are investigated. The conductance versus electron energy is numerically calculated. Two anti-resonance points change into two anti-resonance bands with increasing the size of triple-quantum-dot chain. The widths of two anti-resonance bands are the same and can be regulated via adjusting the inter-dot tunneling coupling strength in the main chain or its attachment. Spin-polarized window emerges due to Zeeman splitting as an external magnetic flux is introduced. Our studies demonstrate that the system can be used as a quantum switch or an efficient spin filtering.
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Sobre autores
Mengchun Lu
School of Electronic and Information Engineering
Email: hrbhzl@126.com
República Popular da China, Chongqing, 408003
Zelong He
School of Electronic and Information Engineering
Autor responsável pela correspondência
Email: hrbhzl@126.com
República Popular da China, Chongqing, 408003
Kongfa Chen
College of Materials Science and Engineering
Email: hrbhzl@126.com
República Popular da China, Fuzhou, Fujian, 350108
Xiaojiang Long
School of Electronic and Information Engineering
Email: hrbhzl@126.com
República Popular da China, Chongqing, 408003
Na Liu
School of Electronic and Information Engineering
Email: hrbhzl@126.com
República Popular da China, Chongqing, 408003
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