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Influence of interface state in Fe/MgO/Fe magnetic tunnel junction system: C modified interfaces—a first principle study
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10.1063/1.3575337
/content/aip/journal/jap/109/8/10.1063/1.3575337
http://aip.metastore.ingenta.com/content/aip/journal/jap/109/8/10.1063/1.3575337
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Schematic plot of the two probe Fe (001)/C/MgO (100)/Fe (001) device. The system extends infinitely in the (x,y) direction with a lattice constant of 2.866 Å and is finite in the z direction.

Image of FIG. 2.
FIG. 2.

(Color online) The calculated TMR under bias for the Fe/C/MgO/Fe system (five layer MgO barrier: -○-; ten layer MgO barrier: -•-). The inset gives the TMR for Fe/MgO/Fe (-▪-) and Fe/C/MgO/C/Fe (-□-) systems.

Image of FIG. 3.
FIG. 3.

(Color online) The conductances of different channels for three systems: (a) Fe/MgO/Fe, (b) Fe/C/MgO/Fe, and (c) Fe/C/MgO/C/Fe.

Image of FIG. 4.
FIG. 4.

(Color online) The -resolved conductance of Fe/MgO/Fe systems under a bias of 0.0 V for (a) a P majority channel and (b) an AP minority channel. For clarity, the scale is normalized to 1 with scaling factors of and , respectively.

Image of FIG. 5.
FIG. 5.

(Color online) The -resolved conductance of Fe/C/MgO/Fe (five layer MgO) systems under a bias of (a) 0.0, (b) 0.5, (c) 1.0, (d) − 0.5, (e) − 0.7, and (f) − 1.0 V for a P majority channel. For clarity, the scale is normalized to 1 with scaling factors of , , , , , and , respectively.

Image of FIG. 6.
FIG. 6.

(Color online) The -resolved conductance of Fe/C/MgO/Fe (five layer MgO) systems under a bias of (a) 0.0, (b) 0.5, (c) 1.0, (d) − 0.5, (e) − 0.7, and (f) − 1.0 V for an AP minority channel. For clarity, the scale is normalized to 1 with scaling factors of , , , , , and , respectively.

Image of FIG. 7.
FIG. 7.

(Color online) The -resolved conductance of Fe/C/MgO/C/Fe (five layer MgO) systems for a P minority channel under a bias of (a) 0.0 and (b) 0.5 V. For clarity, the scale is normalized to 1 with scaling factors of and , respectively.

Image of FIG. 8.
FIG. 8.

(Color online) The -resolved conductance of Fe/C/MgO/Fe (ten layer MgO) systems under a bias of 0.0 V for (a) a P minority channel and (b) an AP minority channel. For clarity, the scale is normalized to 1 with scaling factors of and , respectively.

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/content/aip/journal/jap/109/8/10.1063/1.3575337
2011-04-21
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Influence of interface state in Fe/MgO/Fe magnetic tunnel junction system: C modified interfaces—a first principle study
http://aip.metastore.ingenta.com/content/aip/journal/jap/109/8/10.1063/1.3575337
10.1063/1.3575337
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