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 |
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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)