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Theory of the anisotropic magnetoresistance in copper
- Source :
- Journal of Physics and Chemistry of Solids. 71:1187-1190
- Publication Year :
- 2010
- Publisher :
- Elsevier BV, 2010.
-
Abstract
- The motion of the guiding center of magnetic circulation generates a charge transport. The application of kinetic theory to the motion gives a modified Drude formula for the magnetoconductivity: σ = e 2 n c τ / M * , where M⁎ is the magnetotransport mass distinct from the cyclotron mass, nc the density of the conduction electrons, and τ the relaxation time. The density nc depends on the applied magnetic field direction relative to copper's face-centered-cubic lattice, when the Fermi surface of copper is nonspherical with necks. The anisotropic magnetoresistance of copper is calculated with the assumption of the necks representing by spheres of radius a centered at the eight singular points on the ideal Fermi surface. A good fit with experiments is obtained.
Details
- ISSN :
- 00223697
- Volume :
- 71
- Database :
- OpenAIRE
- Journal :
- Journal of Physics and Chemistry of Solids
- Accession number :
- edsair.doi...........0fc52589d96343659764f5e38114c73d