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Studying Complex Surface Dynamical Systems Using Helium-3 Spin-Echo Spectroscopy

  • Book
  • © 2014

Overview

Authors:
  1. Barbara A. J. Lechner

    1. Lawrence Berkeley National Laboratory, Materials Sciences Divisions, Berkeley CA 94720, USA

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  • Nominated as an Outstanding Ph.D. thesis by the University of Cambridge, UK
  • Provides a comprehensive introduction to the helium spin-echo technique for newcomers to the field
  • Combines aspects of instrumentation, experimentation and simulation
  • Reports on a detailed investigation into the dynamics of aromatic adsorbate species
  • Includes supplementary material: sn.pub/extras

Part of the book series: Springer Theses (Springer Theses)

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Table of contents (8 chapters)

  1. Front Matter

    Pages i-xv
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  2. Introduction

    • Barbara A. J. Lechner
    Pages 1-4

  3. The Helium-3 Spin-Echo Experiment

    • Barbara A. J. Lechner
    Pages 5-32

  4. A New Helium Atom Scattering Apparatus

    • Barbara A. J. Lechner
    Pages 33-49

  5. An Improved High Intensity Supersonic Helium Beam Source

    • Barbara A. J. Lechner
    Pages 51-69

  6. The Dynamics of Cyclopentadienyl on Cu(111)

    • Barbara A. J. Lechner
    Pages 71-104

  7. Quantum Influences in the Diffusive Motion of Pyrrole on Cu(111)

    • Barbara A. J. Lechner
    Pages 105-141

  8. The Atomic-Scale Motion of Thiophene on Cu(111)

    • Barbara A. J. Lechner
    Pages 143-168

  9. Conclusions

    • Barbara A. J. Lechner
    Pages 169-172
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Keywords

About this book

Chemical reactions and growth processes on surfaces depend on the diffusion and re-orientation of the adsorbate molecules. A fundamental understanding of the forces guiding surface motion is thus of utmost importance for the advancement of many fields of science and technology. To date, our understanding of the principles underlying surface dynamics remains extremely limited, due to the difficulties involved in measuring these processes experimentally. The helium-3 spin-echo (HeSE) technique is uniquely capable of probing such surface dynamical phenomena. The present thesis extends the field of application of HeSE from atomic and small molecular systems to more complex systems. Improvements to the supersonic helium beam source, a key component of the spectrometer, as well as a detailed investigation of a range of five-membered aromatic adsorbate species are presented. The thesis provides a comprehensive description of many aspects of the HeSE method - instrumentation, measurement and data analysis - and as such offers a valuable introduction for newcomers to the field.

Authors and Affiliations

  • Lawrence Berkeley National Laboratory, Materials Sciences Divisions, Berkeley CA 94720, USA

    Barbara A. J. Lechner

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