Tunnel barrier height oscillations at the solid/liquid interface

被引:69
作者
Hugelmann, M
Schindler, W
机构
[1] Univ Karlsruhe, Inst Hochfrequenztech & Quantenelekt, D-76128 Karlsruhe, Germany
[2] Univ Karlsruhe, Ctr Funct Nanostruct, D-76128 Karlsruhe, Germany
关键词
scanning tunneling microscopy; scanning tunneling spectroscopies; surface electronic phenomena (work function; surface potential; surface states; etc.); tunneling; gold; solid-liquid interfaces; metal-electrolyte interfaces;
D O I
10.1016/S0039-6028(03)00923-3
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
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. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:L643 / L648
页数:6
相关论文
共 31 条
[1]   Electron tunneling through water layers: Effect of layer structure and thickness [J].
Benjamin, I ;
Evans, D ;
Nitzan, A .
JOURNAL OF CHEMICAL PHYSICS, 1997, 106 (16) :6647-6654
[2]  
Berkowitz ML, 1999, INTERFACIAL ELECTROCHEMISTRY, P33
[3]   ELECTROLYTIC SCANNING TUNNELING MICROSCOPY AND POINT CONTACT STUDIES AT ELECTROCHEMICALLY POLISHED AU(111) SUBSTRATES WITH AND WITHOUT PB ADSORBATES [J].
BINGGELI, M ;
CARNAL, D ;
NYFFENEGGER, R ;
SIEGENTHALER, H ;
CHRISTOPH, R ;
ROHRER, H .
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 1991, 9 (04) :1985-1992
[4]   TRAVERSAL TIME FOR TUNNELING [J].
BUTTIKER, M ;
LANDAUER, R .
PHYSICAL REVIEW LETTERS, 1982, 49 (23) :1739-1742
[5]   A Contribution to the Theory of Electrocapillarity [J].
Chapman, David Leonard .
PHILOSOPHICAL MAGAZINE, 1913, 25 (148) :475-481
[6]   Electrochemical fabrication of large arrays of metal nanoclusters [J].
Engelmann, GE ;
Ziegler, JC ;
Kolb, DM .
SURFACE SCIENCE, 1998, 401 (02) :L420-L424
[7]   MOLECULAR-DYNAMICS SIMULATION OF ADSORPTION OF IONS FROM AQUEOUS-MEDIA ONTO CHARGED ELECTRODES [J].
GLOSLI, JN ;
PHILPOTT, MR .
JOURNAL OF CHEMICAL PHYSICS, 1992, 96 (09) :6962-6969
[8]  
Gouy, 1909, CR HEBD ACAD SCI, V149, P654
[9]   Electron tunneling across an interfacial water layer inside an STM junction: tunneling distance, barrier height and water polarization effect [J].
Hahn, JR ;
Hong, YA ;
Kang, H .
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1998, 66 (Suppl 1) :S467-S472
[10]   Tunnel channels, spectroscopy and imaging in STM [J].
Halbritter, J .
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1998, 66 (Suppl 1) :S181-S186