Accession Number:

ADA257137

Title:

Adhesion in Atomic Scale Metal Contacts

Descriptive Note:

Technical rept.

Corporate Author:

DALHOUSIE UNIV HALIFAX (NOVA SCOTIA) DEPT OF PHYSICS

Personal Author(s):

• Wang, L. C.
• Kreuzer, H. J.
• Durig, U.
• Zuger, O.

Report Date:

1992-10-06

Pagination or Media Count:

16.0

Abstract:

The adhesion interaction of an Ir tip with Ir and Al surfaces has been investigated using the scanning tunneling microscope. Qualitative differences in the adhesion characteristics have been observed. A cluster model based on effective pair-potentials has been set up to understand adhesion in atomic scale contacts. The model calculation provides a semi-quantitative explanation of the experimental data. In particular it is shown that subtle differences of the atomic interaction potentials have a significant effect on the contact mechanics. Adhesion, Metal Contacts.

Descriptors:

• *ADHESION
• *METAL CONTACTS
• SCANNING
• METALS
• SCANNING ELECTRON MICROSCOPES
• SURFACES
• SCALE
• METALLIC TEXTILES
• MICROSCOPES
• TUNNELING
• MECHANICS
• EXPERIMENTAL DATA
• MODELS
• INTERACTIONS

Subject Categories:

• Electrical and Electronic Equipment
• Adhesives, Seals and Binders

Distribution Statement:

APPROVED FOR PUBLIC RELEASE