Electron tunneling in (SN)x and conducting organic salts

P. M. Chaikin, P. K. Hansma, R. L. Greene

Research output: Contribution to journalArticle


We have made tunnel junctions on (SN)x and several tetracyanoquinodimethane (TCNQ) compounds by evaporation of Pb, Sn, and In and by application of a Hg-In amalgam. Junctions formed with (SN)x and HMTSeF-TCNQ show the usual gap structure of the superconducting counterelectrode when cooled to liquid-helium temperatures. Although good tunnel junctions are formed, we are not able to detect a superconducting gap in the (SN)x down to 60 mK. A broad zero-bias anomaly suggests that the surface of (SN)x consists of small particles which are not superconducting and hence are similar to (SNx) films.

Original languageEnglish (US)
Pages (from-to)179-183
Number of pages5
JournalPhysical Review B
Issue number1
StatePublished - Jan 1 1978
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics

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    Chaikin, P. M., Hansma, P. K., & Greene, R. L. (1978). Electron tunneling in (SN)x and conducting organic salts. Physical Review B, 17(1), 179-183. https://doi.org/10.1103/PhysRevB.17.179