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Evaluation of electron–electron interactions in coupled quantum dots by using far-infrared spectra

Dong Qing-Rui1

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We have studied the far-infrared spectra of two-electron vertically coupled quantum dots in an axial magnetic field by exact diagonalization. The calculated results show an obvious difference in role between the interactions for spin S = 1 and for spin S = 0. The results support the possibility to evaluate the interactions by far-infrared spectroscopy in vertically coupled quantum dots.


PACS

73.21.La Quantum dots

78.30.Fs III-V and II-VI semiconductors

78.67.Hc Quantum dots

Subjects

Condensed matter: electrical, magnetic and optical

Semiconductors

Surfaces, interfaces and thin films

Nanoscale science and low-D systems

Dates

Issue 4 (April 2008)

Received 17 September 2007, in final form 19 November 2007



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