Ground-State Transitions in Two Vertically Coupled Single Electron Quantum Dots
XIE Wen-fang
Department of Physics, Guangzhou Normal University, Guangzhou 510400
Ground-State Transitions in Two Vertically Coupled Single Electron Quantum Dots
XIE Wen-fang
Department of Physics, Guangzhou Normal University, Guangzhou 510400
关键词 ：
73.20.Dx ,
73.20.Mf ,
73.40.Kp
Abstract ： Exact results for the two vertically coupled two-dimensional single electron quantum dots are obtained as a function of magnetic field. The ground-state transition is investigated and the effect of the distance between a double-layer dot on the Coulomb interaction is studied. Our results show that when the inter-dot distance increases, a higher magnetic field is needed to induce ground-state transitions and that for sufficiently large distance no transitions occur. Hence, the short-ranged component of Coulomb interaction is important whether the ground-state transition appears in double-layer quantum dots.
Key words ：
73.20.Dx
73.20.Mf
73.40.Kp
出版日期: 1999-01-01
:
73.20.Dx
73.20.Mf
(Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))
73.40.Kp
(III-V semiconductor-to-semiconductor contacts, p-n junctions, and heterojunctions)
引用本文:
XIE Wen-fang. Ground-State Transitions in Two Vertically Coupled Single Electron Quantum Dots[J]. 中国物理快报, 1999, 16(1): 53-55.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y1999/V16/I1/53
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