Abstract
We have measured the inverse decay length (κ) for tunneling in water between a Pt-Ir tip and an Au(111) surface. At 109 Ω κ = 0.92 ± 0.16 Å-1 (Au negative), almost independent of electrochemical potential. An unexpected drop is observed as the gap resistance is reduced below 108 Ω. The tunnel gap at 109 Ω is about 20 Å, 12 Å more than predicted by ab initio calculations. It is Ohmic for resistances between 109 and 106 Ω and voltages less than 0.1 V, implying that sharp resonances do not play a role.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 306-310 |
| Number of pages | 5 |
| Journal | Chemical Physics Letters |
| Volume | 236 |
| Issue number | 3 |
| DOIs | |
| State | Published - Apr 13 1995 |
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry
Fingerprint Dive into the research topics of 'Non-exponential tunneling in water near an electrode'. Together they form a unique fingerprint.
Cite this
Vaught, A., Jing, T. W., & Lindsay, S. (1995). Non-exponential tunneling in water near an electrode. Chemical Physics Letters, 236(3), 306-310. https://doi.org/10.1016/0009-2614(95)00223-Q