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Structural, electronic, magnetic and spin dependent transport properties of Fe/CaS/Fe (001) heterostructures
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10.1063/1.4790574
/content/aip/journal/jap/113/5/10.1063/1.4790574
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/5/10.1063/1.4790574
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

The Fe/CaS/Fe (001) heterostructure.

Image of FIG. 2.
FIG. 2.

Model for Fe/CaS (001) interface structures, IC1 interface configuration with Fe atoms sitting above Ca and S sites and IC2 with iron atoms located above hollow sites between Ca and S atoms (we note that for IC2 interface model the Fe1' and Fe2' atoms have similar atomic environments).

Image of FIG. 3.
FIG. 3.

Total energy and the band gap of bulk CaS versus lattice spacing.

Image of FIG. 4.
FIG. 4.

Band structure and total density of states for bulk CaS.

Image of FIG. 5.
FIG. 5.

Ca and S partial densities of states in CaS compound.

Image of FIG. 6.
FIG. 6.

Layer and atom decomposed DOS for 6Fe/9CaS/7Fe (001) heterostructure with IC1 interface structure.

Image of FIG. 7.
FIG. 7.

Layer and atom decomposed DOS for 6Fe/9CaS/7Fe (001) heterostructure with IC2 interface structure.

Image of FIG. 8.
FIG. 8.

The l-resolved DOS for interfacial Fe, Ca, and S atoms in 6Fe/9CaS/7Fe (001) heterostructures.

Image of FIG. 9.
FIG. 9.

Charge transfer and magnetic profiles of6Fe/9CaS/7Fe (001) heterostructures (layer decomposed charge transfers and the average magnetic moments are presented for magnetic electrodes while layer and atom decomposed charge transfers and magnetic moments are shown for CaS barriers).

Image of FIG. 10.
FIG. 10.

The exchange coupling versus barrier thickness for 6Fe/mCaS/7Fe (001) heterostructures.

Image of FIG. 11.
FIG. 11.

Conductance and TMR ratio versus barrier thickness for 6Fe/mCaS/7Fe (001) MTJs.

Image of FIG. 12.
FIG. 12.

k //-resolved conductances of FM and AFM states for 6Fe/mCaS/7Fe (001) MTJs with m = 5 and 9 (the reciprocal vectors are given in units of ).

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/content/aip/journal/jap/113/5/10.1063/1.4790574
2013-02-07
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Structural, electronic, magnetic and spin dependent transport properties of Fe/CaS/Fe (001) heterostructures
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/5/10.1063/1.4790574
10.1063/1.4790574
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