The low field Hall coefficient of polyvalent metals. II. Ca

Abstract

The formula by Tsuji for the low field Hall coefficient has been evaluated for Ca in the nearly free electron approximation. The total value consists of the free electron valueR0=-1/ne, due to the spherical Fermi surface part (free electrons), and the contributions of the distorted areas in the vicinity of the Bragg planes (Bragg electrons and holes). At room temperature the weight of the (111)-Bragg particles is 15 per cent ofR0. The touching of the Fermi surface at the (200)-planes creates Bragg holes, yielding a positive contribution to the Hall coefficient of 0.45R0.