Phase breaking of trapped electrons in a gated quantum dot

N. Sasaki, Y. Ohkubo, Y. Ochiai, K. Ishibashi, J. P. Bird, Y. Aoyagi, T. Sugano, D. K. Ferry

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We have observed conductance fluctuations due to electron interference in a split-gate quantum dot, fabricated in the two-dimensional electron gas of a GaAs/AlxGa1-xAs heterojunction. We have determined the phase breaking time of electrons by two independent analyses, using the correlation field and the amplitude of the fluctuations. Phase breaking times obtained by these distinct approaches are found to differ from each other by a factor of six.

Original languageEnglish (US)
Pages (from-to)69-74
Number of pages6
JournalSuperlattices and Microstructures
Volume22
Issue number1
DOIs
StatePublished - 1997

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Semiconductor quantum dots
quantum dots
Two dimensional electron gas
Electrons
electron gas
Heterojunctions
heterojunctions
electrons
interference
gallium arsenide

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Sasaki, N., Ohkubo, Y., Ochiai, Y., Ishibashi, K., Bird, J. P., Aoyagi, Y., ... Ferry, D. K. (1997). Phase breaking of trapped electrons in a gated quantum dot. Superlattices and Microstructures, 22(1), 69-74. https://doi.org/10.1006/spmi.1996.0264

Phase breaking of trapped electrons in a gated quantum dot. / Sasaki, N.; Ohkubo, Y.; Ochiai, Y.; Ishibashi, K.; Bird, J. P.; Aoyagi, Y.; Sugano, T.; Ferry, D. K.

In: Superlattices and Microstructures, Vol. 22, No. 1, 1997, p. 69-74.

Research output: Contribution to journalArticle

Sasaki, N, Ohkubo, Y, Ochiai, Y, Ishibashi, K, Bird, JP, Aoyagi, Y, Sugano, T & Ferry, DK 1997, 'Phase breaking of trapped electrons in a gated quantum dot', Superlattices and Microstructures, vol. 22, no. 1, pp. 69-74. https://doi.org/10.1006/spmi.1996.0264
Sasaki N, Ohkubo Y, Ochiai Y, Ishibashi K, Bird JP, Aoyagi Y et al. Phase breaking of trapped electrons in a gated quantum dot. Superlattices and Microstructures. 1997;22(1):69-74. https://doi.org/10.1006/spmi.1996.0264
Sasaki, N. ; Ohkubo, Y. ; Ochiai, Y. ; Ishibashi, K. ; Bird, J. P. ; Aoyagi, Y. ; Sugano, T. ; Ferry, D. K. / Phase breaking of trapped electrons in a gated quantum dot. In: Superlattices and Microstructures. 1997 ; Vol. 22, No. 1. pp. 69-74.
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