Scattering of Thermal Helium Atoms from a Mercury Film Deposited on a Lithium Fluoride Substrate

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Abstract
Films of mercury were deposited on a lithium fluoride substrate in an attempt to observe diffraction phenomena in the scattering pattern of helium atoms. No diffraction effects were observed. A large variation of the elastic (00) peak with surface temperature was observed and an attempt was made to use this information in discussing the Debye‐Waller effect. A large component of inelastic scattering was observed and reasons have been presented to account for its wide distribution in space. Also studied was the scattering behavior of helium atoms from partially continuous mercury films at various stages in the nucleation process.