Atomic and molecular beam scattering from crystal surfaces in the quantum regime

Atomic beam scattering from surfaces is rapidly evolving as a valuable technique for exploring atom-surface interactions, manifested in both elastic and inelastic processes. We review this field with emphasis on the regime of elastic scattering of low mass particles, where quantum effects are apparent. The discussion focuses on recent developments including both experimental and theoretical methods and results. Information about the potential that can be deduced from selective adsorption observations is described.