2000/05/31 by Hui Hu, Jia-Lin Zhu, Jia‐Lin Zhu +1 · 1 citation
Engineering · Physics and Astronomy · #Molecular Junctions and Nanostructures #Quantum and electron transport phenomena #Semiconductor Quantum Structures and Devices #cond-mat.mes-hall #cond-mat.mtrl-sci
paper · pdf · doi:10.1103/physrevb.62.16777
published as Phys. Rev. B 62, 16777 (2000) · 17 pages, 6 figures, revised and accepted by Phys. Rev. B (Dec. 15)
arxiv created 2000/09/29 · openalex publication_date 2000/12/15 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The effects of electron-electron interaction of a two-electron nanoscopic ring on the energy levels and far-infrared spectroscopy have been investigated based on a model calculation that is performed within the exactly numerical diagonalization. It is found that the interaction changes the energy spectra dramatically, and also shows significant influence on the far-infrared spectroscopy. The crossings between the lowest spin-singlet and triplet states induced by the Coulomb interaction are clearly revealed. Our results are related to the experiment recently carried out by Lorke et al. [Phys. Rev. Lett. 84, 2223 (2000)].