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

Abstract

By the use of twoport network theory, the classical expression for the two-species Hall Coefficient, [Formula: see text] is, on admission of terms neglected by earlier authors, corrected to [Formula: see text] The new expression approximates the old when | By| « min {1/ μn, 1/ μp}. The condition of approximation establishes the range of field strength in which the classical expression is acceptable. Since the Hall Effect is part of the stock-in-trade of electrical engineers, however, it seems important that students should be aware of the correct expression.