English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Rupture of molecular thin films observed in atomic force microscopy. I. Theory

Butt, H.-J., & Franz, V. (2002). Rupture of molecular thin films observed in atomic force microscopy. I. Theory. Physical Review E, 66(3): 031601.

Item is

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Butt, Hans-Jürgen1, Author           
Franz, V., Author
Affiliations:
1MPI for Polymer Research, Max Planck Society, ou_1309545              

Content

show
hide
Free keywords: -
 Abstract: In atomic force microscope studies of molecular thin films, a defined jump of the tip through the film is often observed once a certain threshold force has been exceeded. Here, we present a theory to describe this film rupture and to relate microscopic parameters to measurable quantities. We assume that the tip has to overcome an activation energy before the film ruptures. A universal relation between the force dependence of the activation energy and the approaching velocity of the tip is derived. Two complementary models for calculating the activation energy are presented: a continuum nucleation model and a discrete molecular model. Both models predict a narrow distribution of yield forces in agreement with experimental results.

Details

show
hide
Language(s): eng - English
 Dates: 2002-09
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: No review
 Identifiers: eDoc: 28312
ISI: 000178623300036
Other: P-02-166
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Physical Review E
  Alternative Title : Phys. Rev. E
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 66 (3) Sequence Number: 031601 Start / End Page: - Identifier: ISSN: 1063-651X