Scattering of an alkali atomic beam on anti-spin-relaxation-coatings

We performed scattering experiments using a rubidium (Rb) atomic beam on paraffin films and measured the angular and velocity distributions of scattered atoms. The paraffin films were prepared in various ways and characterized by atomic force microscopy and X-ray diffraction. The films exhibited var...

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Bibliographic Details
Published inarXiv.org
Main Authors Sekiguchi, Naota, Okuma, Kazane, Usui, Hiroaki, Hatakeyama, Atsushi
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 06.07.2018
Subjects
Angular velocity
Atomic beams
Atomic force microscopy
Crystal structure
Crystals
Paraffins
Physics - Atomic Physics
Polarization (spin alignment)
Rubidium
Scattering
X-ray diffraction
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Summary:We performed scattering experiments using a rubidium (Rb) atomic beam on paraffin films and measured the angular and velocity distributions of scattered atoms. The paraffin films were prepared in various ways and characterized by atomic force microscopy and X-ray diffraction. The films exhibited various roughnesses and crystal structures. The paraffin films preserved the spin polarization of the scattered atoms. The measured angular distributions of all prepared films were consistent with Knudsen's cosine law. The velocity distributions were well fitted by Maxwell's distribution, characterized by a temperature much closer to the film temperature than to the atomic-beam temperature. We therefore concluded that the Rb atoms were well thermalized with the paraffin films via single scattering events.
ISSN:2331-8422
DOI:10.48550/arxiv.1807.02329