Electron-phonon heat transport and electronic thermal conductivity in heavily doped silicon-on-insulator film

P. Kivinen, A. Savin, M. Zgirski, P. Törmä, J. Pekola, Mika Prunnila, Jouni Ahopelto

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    24 Citations (Scopus)


    Electron–phonon interaction and electronic thermal conductivity have been investigated in heavily doped silicon at subKelvin temperatures. The heat flow between electron and phonon systems is found to be proportional to T6. Utilization of a superconductor–semiconductor–superconductor thermometer enables a precise measurement of electron and substrate temperatures. The electronic thermal conductivity is consistent with the Wiedemann–Franz law.
    Original languageEnglish
    Pages (from-to)3201-3205
    Number of pages5
    JournalJournal of Applied Physics
    Issue number5
    Publication statusPublished - 2003
    MoE publication typeA1 Journal article-refereed



    • silicon-on-insulator
    • SOI
    • elemental semiconductors
    • thermal conductivity
    • electron-phonon interactions
    • Wiedemann-Franz law
    • heavily doped semiconductors

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