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Correction to the Classical Two-Species Hall Coefficient Using Twoport Network Theory

A recent treatment of the Earth’s magnetic field and sunspots by the author assigned a crucial role to the Hall Effect, as an orthogonal axis energy transfer mechanism. In clarification, inspired by feedback from readers, explicit analysis of two-axis current flow for the single-species Hall Effect was given, using twoport network theory, which is implicit in Ref. 1 but not mentioned there. Extension of that analysis to the two-species situation led the author to re-derivation of the Hall Coefficient in the presence of two species of carrier. This, unexpectedly, and yet for a perfectly clear reason, corrected the classical expression for the Hall Coefficient,