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Symmetry selected quantum dynamics of few electrons in nanopillar transistors.
Sci Rep. 2019 Dec 27; 9(1):20115.SR

Abstract

Study on single electron tunnel using current-voltage characteristics in nanopillar transistors at 298 K show that the mapping between the Nth electron excited in the central box ∼8.5 × 8.5 × 3 nm3 and the Nth tunnel peak is not in the one-to-one correspondence to suggest that the total number N of electrons is not the best quantum number for characterizing the quality of single electron tunnel in a three-dimensional quantum box transistor. Instead, we find that the best number is the sub-quantum number nz of the conduction z channel. When the number of electrons in nz is charged to be even and the number of electrons excited in the nx and ny are also even at two, the adding of the third electron into the easy nx/ny channels creates a weak symmetry breaking in the parity conserved x-y plane to assist the indirect tunnel of electrons. A comprehensive model that incorporates the interactions of electron-electron, spin-spin, electron-phonon, and electron-hole is proposed to explain how the excited even electrons can be stabilized in the electric-field driving channel. Quantum selection rules with hierarchy for the ni (i = x, y, z) and N = Σni are tabulated to prove the superiority of nz over N.

Authors+Show Affiliations

Department of Electronic Engineering, I-Shou University, Kaohsiung, Taiwan, ROC. ymwan@cloud.isu.edu.tw.Department of Electronic Engineering, I-Shou University, Kaohsiung, Taiwan, ROC.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31882625

Citation

Wan, Yue-Min, and Heng-Tien Lin. "Symmetry Selected Quantum Dynamics of Few Electrons in Nanopillar Transistors." Scientific Reports, vol. 9, no. 1, 2019, p. 20115.
Wan YM, Lin HT. Symmetry selected quantum dynamics of few electrons in nanopillar transistors. Sci Rep. 2019;9(1):20115.
Wan, Y. M., & Lin, H. T. (2019). Symmetry selected quantum dynamics of few electrons in nanopillar transistors. Scientific Reports, 9(1), 20115. https://doi.org/10.1038/s41598-019-56256-7
Wan YM, Lin HT. Symmetry Selected Quantum Dynamics of Few Electrons in Nanopillar Transistors. Sci Rep. 2019 Dec 27;9(1):20115. PubMed PMID: 31882625.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Symmetry selected quantum dynamics of few electrons in nanopillar transistors. AU - Wan,Yue-Min, AU - Lin,Heng-Tien, Y1 - 2019/12/27/ PY - 2019/09/02/received PY - 2019/11/28/accepted PY - 2019/12/29/entrez PY - 2019/12/29/pubmed PY - 2019/12/29/medline SP - 20115 EP - 20115 JF - Scientific reports JO - Sci Rep VL - 9 IS - 1 N2 - Study on single electron tunnel using current-voltage characteristics in nanopillar transistors at 298 K show that the mapping between the Nth electron excited in the central box ∼8.5 × 8.5 × 3 nm3 and the Nth tunnel peak is not in the one-to-one correspondence to suggest that the total number N of electrons is not the best quantum number for characterizing the quality of single electron tunnel in a three-dimensional quantum box transistor. Instead, we find that the best number is the sub-quantum number nz of the conduction z channel. When the number of electrons in nz is charged to be even and the number of electrons excited in the nx and ny are also even at two, the adding of the third electron into the easy nx/ny channels creates a weak symmetry breaking in the parity conserved x-y plane to assist the indirect tunnel of electrons. A comprehensive model that incorporates the interactions of electron-electron, spin-spin, electron-phonon, and electron-hole is proposed to explain how the excited even electrons can be stabilized in the electric-field driving channel. Quantum selection rules with hierarchy for the ni (i = x, y, z) and N = Σni are tabulated to prove the superiority of nz over N. SN - 2045-2322 UR - https://www.unboundmedicine.com/medline/citation/31882625/Symmetry_selected_quantum_dynamics_of_few_electrons_in_nanopillar_transistors L2 - http://dx.doi.org/10.1038/s41598-019-56256-7 DB - PRIME DP - Unbound Medicine ER -
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