Development of an Ultrafast Low-Energy Electron Diffraction Setup

✍ Scribed by Max Gulde (auth.)

• Publisher: Springer International Publishing
• Year: 2015
• Tongue: English
• Leaves: 149
• Series: Springer Theses
• Edition: 1
• Category: Library

✦ Synopsis

This book presents an Ultrafast Low-Energy Electron Diffraction (ULEED) system that reveals ultrafast structural changes on the atomic scale. The achievable temporal resolution in the low-energy regime is improved by several orders of magnitude and has enabled the melting of a highly-sensitive, molecularly thin layer of a polymer crystal to be resolved for the first time. This new experimental approach permits time-resolved structural investigations of systems that were previously partially or totally inaccessible, including surfaces, interfaces and atomically thin films. It will be of fundamental importance for understanding the properties of nanomaterials so as to tailor their properties.

✦ Table of Contents

Front Matter....Pages i-xvii
Introduction....Pages 1-7
Methods and Concepts....Pages 9-25
Aspects of Ultrafast LEED....Pages 27-46
Numerical Analysis of a Tip-Based Ultrafast Electron Gun....Pages 47-58
Experimental Analysis of a Tip-Based Ultrafast Electron Gun....Pages 59-79
Ultrafast PMMA Superstructure Dynamics on Free-Standing Graphene....Pages 81-112
Conclusions....Pages 113-118
Back Matter....Pages 119-138

✦ Subjects

Surface and Interface Science, Thin Films; Spectroscopy and Microscopy; Surfaces and Interfaces, Thin Films