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 |
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ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Physics and Astronomy (miscellaneous)
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GMR in magnetic multilayers from a first principles band structure kubo-greenwood approach. / Rao, Fangyi; Freeman, Arthur J.
In: IEEE Transactions on Magnetics, Vol. 34, No. 4 PART 1, 1998, p. 930-932.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - GMR in magnetic multilayers from a first principles band structure kubo-greenwood approach
AU - Rao, Fangyi
AU - Freeman, Arthur J
PY - 1998
Y1 - 1998
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0032114805&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0032114805&partnerID=8YFLogxK
U2 - 10.1109/20.706316
DO - 10.1109/20.706316
M3 - Article
AN - SCOPUS:0032114805
VL - 34
SP - 930
EP - 932
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
SN - 0018-9464
IS - 4 PART 1
ER -