Tunnel barrier height oscillations at the solid/liquid interface

✍ Scribed by Martin Hugelmann; Werner Schindler

• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 206 KB
• Volume: 541
• Category: Article
• ISSN: 0039-6028
• DOI: 10.1016/s0039-6028(03)00923-3

✦ Synopsis

The tunneling probability at the solid/liquid interface has been probed in real space at Au(1 1 1) surfaces using high resolution in situ distance tunneling spectroscopy (DTS). The exponential decay of the tunneling current with the gap width is modulated with oscillations of a period of 0.35 nm. This period coincides with the theoretically predicted spacing of the interfacial water layers at the charged solid/liquid interface.