Experimental observation of enhanced electron-phonon interaction in suspended Si double quantum dots

Jun Ogi, Thierry Ferrus, Tetsuo Kodera, Yoshishige Tsuchiya, Ken Uchida, David A. Williams, Shunri Oda, Hiroshi Mizuta

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    Abstract

    Silicon-based suspended double quantum dots (SDQDs) were fabricated to study and control the strength of the electron-phonon interaction. A distinctive and large inelastic tunneling was observed in single-electron transport measurement and well explained by the emission of phonons that interact strongly with electrons owing to the phonon modulation in the suspended film. The first time observation of the enhancement of the electron-phonon interaction in Si SDQDs as well as the good agreement between the experimental results and the theoretical simulations are encouraging preliminary results that allow us to envision the observation of the tailoring of the electron-phonon interaction in SDQDs.

    Original languageEnglish
    Pages (from-to)452031-452035
    Number of pages5
    JournalJapanese journal of applied physics
    Volume49
    Issue number4 PART 1
    DOIs
    Publication statusPublished - 2010 Apr 1

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    ASJC Scopus subject areas

    • Engineering(all)
    • Physics and Astronomy(all)

    Cite this

    Ogi, J., Ferrus, T., Kodera, T., Tsuchiya, Y., Uchida, K., Williams, D. A., Oda, S., & Mizuta, H. (2010). Experimental observation of enhanced electron-phonon interaction in suspended Si double quantum dots. Japanese journal of applied physics, 49(4 PART 1), 452031-452035. https://doi.org/10.1143/JJAP.49.045203