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nanoHUB-U Fundamentals of AFM L1.6: Tip-Surface Interactions (Non-Contact) - Dispersion Force

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Published on Jun 2, 2014

Table of Contents:
00:09 Lecture 1.6: The Most General Inter-Molecular Force: The London ...
00:38 Intermolecular Interactions Between Non-polar Molecules
01:04 Motivation
02:16 Interaction potential energy between two non-polar molecules ...
06:40 Induced Fluctuation
09:06 Induced Fluctuation with a Charge
12:43 For Dissimilar Molecules
13:55 Dispersion Forces: State of the Art Electronic-structure Calculation
15:24 Modifications Required for Solids?
16:58 Dispersion Forces - comments
18:32 Summary - van der Waals Forces
20:38 What it means
22:23 Simple Molecules
22:52 Comparing theory and experiment
23:39 Summary of Coulombic Intermolecular Forces
25:04 Next up, the interaction between a tip and a substrate

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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