Thermo-Coulomb effects in mesoscopic tunnel junctions

M. Amman, E. Ben-Jacob, J. Cohn

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


We present a study of the thermoelectric effect in tunnel junctions. In particular we calculate the thermopower coefficient S and the Peltier coefficient π. For macroscopic junctions we demonstrate the sensitivity of S and π to the structure of the density of states. For mesoscopic junctions we show that Coulomb effects modify the ordinary Onsager picture and the relation π=TS. The coefficients S and π are found to be very sensitive to the coupling of the junctions to the external world. We analyze measurements of the thermopower in granular films in terms of the thermo-Coulomb effects. We comment on the relevance of these effects to scanning tunneling microscope measurements.

Original languageEnglish (US)
Pages (from-to)405-411
Number of pages7
JournalZeitschrift für Physik B Condensed Matter
Issue number3
StatePublished - Oct 1991
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics


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