| Autor: |
Stern, R. A., MacLaren, J. M., Charlton, T., Lederman, D. |
| Předmět: |
|
| Zdroj: |
Journal of Applied Physics; 6/1/2004, Vol. 95 Issue 11, p6765-6767, 3p, 3 Graphs |
| Abstrakt: |
The magnetoresistance was calculated for a layered Co/Re hcp(1010) superlattice as a function of external magnetic field. Similar to recent experiments which showed a maximum magnetoresistance of 4.5%, the system modeled here had its growth axis along the (1010) axis and the magnetic easy axis in the plane of the film. Orientations of the magnetic moments in each Co layer as a function of external field were calculated using a self-consistent mean-field method, and were used as input parameters in the calculation of the conductivity tensor. The conductivity tensor was calculated via the Kubo–Greenwood linear response formalism within the layered-Korringa–Kohn–Rostoker approach to density functional theory. The total magnetoresistance is explained as a sum of anisotropic magnetoresistance and giant magnetoresistance. A calculated spin–flop transition at low fields has obvious consequences on the calculated magnetoresistance. © 2004 American Institute of Physics. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
