Confinement-induced enhancement of electron-electron interactions in open quantum-dot arrays

A. Shailos, J. P. Bird, C. Prasad, M. Elhassan, L. Shifren, D. K. Ferry, L. H. Lin, N. Aoki, Y. Ochiai, K. Ishibashi, Y. Aoyagi

Research output: Contribution to journalArticle

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Abstract

We study the properties of the logarithmic variation observed in the temperature-dependent conductance of open quantum-dot arrays. The magnitude of this variation is found to exhibit a well-defined scaling with system size, and is also found to be unaffected by the application of magnetic fields sufficient to break time-reversal symmetry. We suggest that these characteristics are consistent with the logarithmic variation resulting from a confinement-induced enhancement of electron interactions in the arrays. In particular, we note that the size-dependent scaling of this term is similar to that which we would expect for a system whose boundary interactions act to amplify the mutual repulsion of electrons trapped within it.

Original languageEnglish (US)
Article number241302
Pages (from-to)2413021-2413024
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume63
Issue number24
StatePublished - 2001

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Electron-electron interactions
Semiconductor quantum dots
electron scattering
quantum dots
Electrons
augmentation
scaling
electrons
Magnetic fields
symmetry
magnetic fields
Temperature
interactions
temperature

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Shailos, A., Bird, J. P., Prasad, C., Elhassan, M., Shifren, L., Ferry, D. K., ... Aoyagi, Y. (2001). Confinement-induced enhancement of electron-electron interactions in open quantum-dot arrays. Physical Review B - Condensed Matter and Materials Physics, 63(24), 2413021-2413024. [241302].

Confinement-induced enhancement of electron-electron interactions in open quantum-dot arrays. / Shailos, A.; Bird, J. P.; Prasad, C.; Elhassan, M.; Shifren, L.; Ferry, D. K.; Lin, L. H.; Aoki, N.; Ochiai, Y.; Ishibashi, K.; Aoyagi, Y.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 63, No. 24, 241302, 2001, p. 2413021-2413024.

Research output: Contribution to journalArticle

Shailos, A, Bird, JP, Prasad, C, Elhassan, M, Shifren, L, Ferry, DK, Lin, LH, Aoki, N, Ochiai, Y, Ishibashi, K & Aoyagi, Y 2001, 'Confinement-induced enhancement of electron-electron interactions in open quantum-dot arrays', Physical Review B - Condensed Matter and Materials Physics, vol. 63, no. 24, 241302, pp. 2413021-2413024.
Shailos A, Bird JP, Prasad C, Elhassan M, Shifren L, Ferry DK et al. Confinement-induced enhancement of electron-electron interactions in open quantum-dot arrays. Physical Review B - Condensed Matter and Materials Physics. 2001;63(24):2413021-2413024. 241302.
Shailos, A. ; Bird, J. P. ; Prasad, C. ; Elhassan, M. ; Shifren, L. ; Ferry, D. K. ; Lin, L. H. ; Aoki, N. ; Ochiai, Y. ; Ishibashi, K. ; Aoyagi, Y. / Confinement-induced enhancement of electron-electron interactions in open quantum-dot arrays. In: Physical Review B - Condensed Matter and Materials Physics. 2001 ; Vol. 63, No. 24. pp. 2413021-2413024.
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