Phase breaking and energy relaxation in open quantum-dot arrays

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

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

We study both the phase-breaking and the energy-relaxation times as a function of both temperature and bias current in arrays of coupled, open quantum dots. These times show a saturation at low temperature, and a decay at higher temperatures. Importantly, the variations of sample resistance as a function of temperature and current cannot be used to infer the electron temperature at a given bias current, which suggests that the energy relaxation process is likely to be phonon based.

Original languageEnglish (US)
Pages (from-to)15356-15358
Number of pages3
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume62
Issue number23
DOIs
StatePublished - Dec 15 2000

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Semiconductor quantum dots
quantum dots
Bias currents
Temperature
energy
Electron temperature
Relaxation processes
relaxation time
Relaxation time
electron energy
saturation
temperature
decay

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Prasad, C., Ferry, D. K., Shailos, A., Elhassan, M., Bird, J. P., Lin, L. H., ... Aoyagi, Y. (2000). Phase breaking and energy relaxation in open quantum-dot arrays. Physical Review B - Condensed Matter and Materials Physics, 62(23), 15356-15358. https://doi.org/10.1103/PhysRevB.62.15356

Phase breaking and energy relaxation in open quantum-dot arrays. / Prasad, C.; Ferry, D. K.; Shailos, A.; Elhassan, M.; Bird, J. P.; Lin, L. H.; Aoki, N.; Ochia, Y.; Ishibashi, K.; Aoyagi, Y.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 62, No. 23, 15.12.2000, p. 15356-15358.

Research output: Contribution to journalArticle

Prasad, C, Ferry, DK, Shailos, A, Elhassan, M, Bird, JP, Lin, LH, Aoki, N, Ochia, Y, Ishibashi, K & Aoyagi, Y 2000, 'Phase breaking and energy relaxation in open quantum-dot arrays', Physical Review B - Condensed Matter and Materials Physics, vol. 62, no. 23, pp. 15356-15358. https://doi.org/10.1103/PhysRevB.62.15356
Prasad, C. ; Ferry, D. K. ; Shailos, A. ; Elhassan, M. ; Bird, J. P. ; Lin, L. H. ; Aoki, N. ; Ochia, Y. ; Ishibashi, K. ; Aoyagi, Y. / Phase breaking and energy relaxation in open quantum-dot arrays. In: Physical Review B - Condensed Matter and Materials Physics. 2000 ; Vol. 62, No. 23. pp. 15356-15358.
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