Abstract
We employ the Kubo-Greenwood formula to investigate from first-principles the giant magnetoresistance in FemMn (M=V, Or, Mn and Cu) superlattices. The results indicate that MR can arise from band structure changes from ferromagnetic to anti-ferromagnetic alignments. Quantum confinement in the perpendicular direction is induced by the potential steps between the Fe and spacer layers and causes a much larger MR in the current-perpendicular-to-the-plane (CPP) geometry than in the current-in-plane (CIP) geometry. In the presence of the spin-orbit coupling interaction, MR is found to be reduced by spin-channel mixing.
| Original language | English |
|---|---|
| Pages (from-to) | 930-932 |
| Number of pages | 3 |
| Journal | IEEE Transactions on Magnetics |
| Volume | 34 |
| Issue number | 4 PART 1 |
| DOIs | |
| Publication status | Published - 1998 |
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Physics and Astronomy (miscellaneous)
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Rao, F., & Freeman, A. J. (1998). GMR in magnetic multilayers from a first principles band structure kubo-greenwood approach. IEEE Transactions on Magnetics, 34(4 PART 1), 930-932. https://doi.org/10.1109/20.706316