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- W2922388220 abstract "Diffraction with matter waves has been reported since the beginning of quantum mechanics. In free space, diffraction effects have been observed even with objects as large as C60 molecules. However, in scattering from a solid surface, pure elastic diffraction features have never been observed with molecules larger than D2. Here we report the observation of pure molecular diffraction for CH4 scattered off of an Ir(111) surface. These results prove that quantum coherence is preserved, despite the small separation between rotational levels and the interaction with surface phonons. Density functional theory calculations of the potential energy surface provide some clues to understand the larger corrugation sampled by CH4 molecules in comparison to Ne atoms. Our results show that isotope separation of polyatomic molecules may be possible using gas–surface diffraction." @default.
- W2922388220 created "2019-03-22" @default.
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- W2922388220 date "2019-03-11" @default.
- W2922388220 modified "2023-10-12" @default.
- W2922388220 title "Diffraction of CH<sub>4</sub> from a Metal Surface" @default.
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- W2922388220 doi "https://doi.org/10.1021/acs.jpclett.9b00158" @default.
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