Magnon and phonon assisted tunneling in a high-magnetoresistance tunnel junction using Co$_{75}$Fe$_{25}$ ferromagnetic electrodes

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dc.creatorLü, C.
dc.creatorWu, M. W.
dc.creatorHan, X. F.
dc.date2003-02-11
dc.date2003-02-12
dc.date.accessioned2026-07-07T02:49:38Z
dc.date.available2026-07-07T02:49:38Z
dc.descriptionMagnetoelectric properties of the spin-valve-type tunnel junction of Ta(5\ nm)/Ni$_{79}$Fe$_{21}$ (25 nm)/Ir$_{22}$Mn$_{78}$ (10 nm)/Co$_{75}$Fe$_{25}$ (4 nm)/Al (0.8 nm)-oxide/Co$_{75}$Fe$_{25}$ (4 nm)/Ni$_{79}$Fe$_{21}$ (20 nm)/Ta (5 nm) are investigated both experimentally and theoretically. It is shown that both magnon and phonon excitations contribute to the tunneling process. Moreover, we show that there are two branches of magnon with spin $S=1/2$ and 3/2 respectively. The theoretical results are in good agreement with the experimental data.
dc.description4 pages, 6 figures in RevTex format
dc.identifierhttps://arxiv.org/abs/cond-mat/0302210
dc.identifierhttp://arxiv.org/abs/cond-mat/0302210
dc.identifierPhys. Lett. A 319, 205 (2003).
dc.identifierdoi:10.1016/j.physleta.2003.10.010
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/20873
dc.subjectCondensed Matter
dc.titleMagnon and phonon assisted tunneling in a high-magnetoresistance tunnel junction using Co$_{75}$Fe$_{25}$ ferromagnetic electrodes
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