Variation of the temperature dependence of the energy-relaxation time with magnetic field in open quantum dot arrays at low temperatures

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

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

The variation of the magnetoconductance of two quantum dot arrays fabricated on GaAs/AlGaAs with temperature and sample current was used to extract carrier heating values at various magnetic fields. These measurements yielded a power law dependence of the electron temperature with the sample current and we study its variation with magnetic field. The power law exponent for the energy-relaxation time for both the dot arrays stays nearly constant over the entire magnetic field range.

Original languageEnglish (US)
Pages (from-to)486-489
Number of pages4
JournalPhysica B: Condensed Matter
Volume314
Issue number1-4
DOIs
StatePublished - Mar 1 2002

Keywords

  • Energy-relaxaton time
  • Magnetoconductance
  • Open quantum dot arrays

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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    Prasad, C., Ferry, D. K., Shailos, A., Elhassan, M., Bird, J. P., Lin, L. H., Aoki, N., Ochiai, Y., Ishibashi, K., & Aoyagi, Y. (2002). Variation of the temperature dependence of the energy-relaxation time with magnetic field in open quantum dot arrays at low temperatures. Physica B: Condensed Matter, 314(1-4), 486-489. https://doi.org/10.1016/S0921-4526(01)01407-7