Fast hydrogen atom diffraction through monocrystalline graphene
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arXiv
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| Main Authors: | , , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866909984729595904 |
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| author | Guichard, Pierre Dochain, Arnaud Marion, Raphaël de Picquendaele, Pauline de Crombrugghe Lejeune, Nicolas Hackens, Benoît Hervieux, Paul-Antoine Urbain, Xavier |
| author_facet | Guichard, Pierre Dochain, Arnaud Marion, Raphaël de Picquendaele, Pauline de Crombrugghe Lejeune, Nicolas Hackens, Benoît Hervieux, Paul-Antoine Urbain, Xavier |
| contents | We report fast atom diffraction through single-layer graphene using hydrogen atoms at kinetic energies from 150 to 1200 eV. High-resolution images reveal overlapping hexagonal patterns from coexisting monocrystalline domains. Time-of-flight tagging confirms negligible energy loss, making the method suitable for matter-wave interferometry. The diffraction is well described by the eikonal approximation, with accurate modeling requiring the full 3D interaction potential from DFT. Simpler models fail to reproduce the data, highlighting the exceptional sensitivity of diffraction patterns to atom-surface interactions and their potential for spectroscopic applications. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2508_13175 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Fast hydrogen atom diffraction through monocrystalline graphene Guichard, Pierre Dochain, Arnaud Marion, Raphaël de Picquendaele, Pauline de Crombrugghe Lejeune, Nicolas Hackens, Benoît Hervieux, Paul-Antoine Urbain, Xavier Mesoscale and Nanoscale Physics Atomic Physics Quantum Physics We report fast atom diffraction through single-layer graphene using hydrogen atoms at kinetic energies from 150 to 1200 eV. High-resolution images reveal overlapping hexagonal patterns from coexisting monocrystalline domains. Time-of-flight tagging confirms negligible energy loss, making the method suitable for matter-wave interferometry. The diffraction is well described by the eikonal approximation, with accurate modeling requiring the full 3D interaction potential from DFT. Simpler models fail to reproduce the data, highlighting the exceptional sensitivity of diffraction patterns to atom-surface interactions and their potential for spectroscopic applications. |
| title | Fast hydrogen atom diffraction through monocrystalline graphene |
| topic | Mesoscale and Nanoscale Physics Atomic Physics Quantum Physics |
| url | https://arxiv.org/abs/2508.13175 |