Geodesic
Spin-polarized transport in structures with tunnel barriers
Teoretičeskaâ i matematičeskaâ fizika, Tome 168 (2011) no. 3, pp. 428-440

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We study spin-dependent transport theoretically in structures with a barrier composed of magnesium oxide and ferromagnetic electrodes with a noncollinear orientation of magnetizations in the ferromagnetic layers. We consider the effects of tunnel magnetoresistance and of the spin torque in the two-band s–d model using the Keldysh technique of nonequilibrium Green's functions with the s–d hybridization taken into account. We investigate the role of a chromium layer as an additional spin filter for s electrons and the possibility of increasing the effects of tunnel magnetoresistance and of the spin torque for the resonance tunneling in the five-layer structure Fe|Cr|Fe|MgO|Fe.
Keywords: tunnel magnetoresistance, spin-polarized current, multilayer nanostructure.
Mots-clés : spin torque 
@article{TMF_2011_168_3_a5,
     author = {A. V. Vedyaev and O. A. Kotel'nikova and L. Yu. Lystzeva and N. V. Rzhanova and N. V. Strelkov and M. G. Chshiev},
     title = {Spin-polarized transport in structures with tunnel barriers},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {428--440},
     publisher = {mathdoc},
     volume = {168},
     number = {3},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2011_168_3_a5/}
}
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A. V. Vedyaev; O. A. Kotel'nikova; L. Yu. Lystzeva; N. V. Rzhanova; N. V. Strelkov; M. G. Chshiev. Spin-polarized transport in structures with tunnel barriers. Teoretičeskaâ i matematičeskaâ fizika, Tome 168 (2011) no. 3, pp. 428-440. http://geodesic.mathdoc.fr/item/TMF_2011_168_3_a5/