Abstract
Hall coefficient measurements have been performed on a polycrystalline 11 875 Å Bismuth film in fields oriented parallel to the current flow. Classical theory predicts no Hall voltages and no magnetoresistances (MRs) in parallel fields. Probably owing to diffused and specular scattering off the rough surfaces of the crystallites, Hall voltages and parallel MR's are easily measured. Hall coefficient data in parallel Bs are summarized at 295, 78, and 1.49 K. The data are interpreted using the Pippard–Fawcett expression and the Landau tube model that contributes additional carriers at high fields.
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