Abstract
The magnetoresistance anisotropy is calculated for ferromagnetic nickel-copper alloys. The model is based on impurity scattering at temperatures sufficiently low for the electron-magnon interaction to be negligible. The bands as well as the conductivity integrals are treated in considerably more detail than previously reported. The results indicate that the majority-spin current favors the condition and the minority-spin current favors . This is in opposition to previous work based on overly simplified band models. The feature of the band models. The feature of the band structure most responsible for producing a large, positive, magnetoresistance coefficient appears to be a near-degeneracy at the Fermi energy between predominantly minority-spin bands.
- Received 18 March 1974
DOI:https://doi.org/10.1103/PhysRevB.10.4626
©1974 American Physical Society