## Helium Atom Scattering from SurfacesHigh resolution helium atom scattering can be applied to study a number of interesting properties of solid surfaces with great sensitivity and accuracy. This book treats in detail experimental and theoretical aspects ofthis method as well as all current applications in surface science. The individual chapters - all written by experts in the field - are devoted to the investigation of surface structure, defect shapes and concentrations, the interaction potential, collective and localized surface vibrations at low energies, phase transitions and surface diffusion. Over the past decade helium atom scattering has gained widespread recognitionwithin the surface science community. Points in its favour are comprehensiveunderstanding of the scattering theory and the availability of well-tested approximation to the rigorous theory. This book will be invaluable to surface scientists wishing to make an informed judgement on the actual and potential capabilities of this technique and its results. |

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### Contents

1 | |

Hoinkes | 40 |

Structural Information from Atomic Beam Diffraction | 41 |

Allow | 56 |

References | 69 |

Scattering from Stepped Surfaces and Roughening | 94 |

Resonances in Helium Scattering from Surfaces | 113 |

PMSA and PMSD | 152 |

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### Common terms and phrases

adatoms adsorbed adsorption amplitude anomaly approximation atom scattering atoms azimuth Benedek bound Brillouin zone Brusdeylins bulk phonon calculations Cantini Celli Chem Comsa correlation function corresponding corrugation crystal Debye-Waller factor defects density diffraction diffraction peaks diffusion coefficient dispersion curves dispersion relations DMSA dynamical elastic electron equation experimental factor force constant Fourier hard wall helium atoms helium scattering inelastic scattering interaction potential J.P. Toennies K.H. Rieder kinematic Lapujoulade lattice constant layer Lett matrix measured metal surfaces method minima molecules momentum monolayer Morse potential neutron neutron scattering observed obtained overlayers parameters particle phase phonon dispersion relation phonon energy Phys platinum pseudorandom quasielastic Rayleigh wave reciprocal lattice vector resolution resonance RMSA scan selective adsorption single phonon solid spectra specular beam specular intensity Springer step edges structure substrate Surf Sci surface phonon dispersion temperature terrace tion transition unit cell vibrational wave vector wavefunction Wöll