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nanoHUB-U Fundamentals of AFM L1.5: Tip-Surface Interactions (Non-Contact) - Keesom Force

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Published on Jun 2, 2014

Table of Contents:
00:09 Lecture: 1.5: Inter-Molecular Forces: Keesom Force
01:30 Last Lecture: Electrostatic Intermolecular Interactions
02:12 This Lecture: Electrostatic Intermolecular Interactions
03:48 5. Interaction between polar molecules: fixed orientation
08:03 Dipole-Dipole Interactions
08:41 Representative plots of f(θ1,θ2,ϕ)
10:48 Interaction potential energy between in-plane (ϕ=0°) permanent dipoles
13:41 6. Interaction between polar molecules: angle averaged
16:41 The Keesom interaction between two ethanol molecules
18:24 7. Interaction potential energy between a polar and non-polar molecule
22:24 The induced dipole moment is a function of E
23:10 If the non-polar molecule is replaced by a polar one, then the second ...
24:43 Appendix A: Derivation of the angle-averaged Keesom interaction

This video is part of nanoHUB-U's course Fundamentals of Atomic Force Microscopy: Part 1 Fundamental Aspects of AFM. (https://nanohub.org/courses/AFM1)

Structured as two 5-week courses, this unique set of courses developed by Profs. Ron Reifenberger and Arvind Raman, look at the underlying fundamentals of atomic force microscopy and exposes the knowledge base required to understand how an AFM operates.

The atomic force microscope (AFM) is a key enabler of nanotechnology, and a proper understanding of how this instrument operates requires a broad-based background in many disciplines. Few users of AFM have the opportunity or resources to rapidly acquire the interdisciplinary knowledge that allows an intelligent operation of this instrument. This focused, in-depth course solves this problem by presenting a unified discussion of the fundamentals of atomic force microscopy.

Fundamentals of Atomic Force Microscopy, Part 2: Dynamic AFM Methods provides an in-depth treatment of dynamic mode AFM.

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