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

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21 Scopus citations

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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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Prasad, C., Ferry, D. K., Shailos, A., Elhassan, M., Bird, J. P., Lin, L. H., 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, 62(23), 15356-15358. https://doi.org/10.1103/PhysRevB.62.15356