Hall coefficient of dilute Cu-Au(Fe) alloys. II. Theory
Abstract
We study the resistivity ρ and the Hall coefficient R for a polycrystalline metallic host which possesses carriers with a variety of transport properties, particularly an anisotropy over the Fermi surface in the background defect scattering rate. Using the s-d model we derive general expressions for ρ and R when the metallic host contains a dilute concentration of magnetic impurities. Our theory when applied to Cu-Au(Fe) correctly predicts the dependence of ρ and R on temperature, magnetic field, and Fe concentration C. The formulas can be expanded in powers of the concentration and we find that the terms in ρ and R which are linear and quadratic in C are consistent with each other and agree with experimental findings reported in a preceding paper.
- Publication:
-
Physical Review B
- Pub Date:
- October 1974
- DOI:
- 10.1103/PhysRevB.10.2995
- Bibcode:
- 1974PhRvB..10.2995B