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Effects of ferroelectricity and magnetism on electron and spin transport in multiferroic tunnel junctions
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10.1063/1.2828512
/content/aip/journal/jap/103/7/10.1063/1.2828512
http://aip.metastore.ingenta.com/content/aip/journal/jap/103/7/10.1063/1.2828512

Figures

Image of FIG. 1.
FIG. 1.

Atomic structure of a tunnel junction. Arrows show displacements of Ti atoms with respect to O atoms within each monolayer for (a) paraelectric (PE) and (b) ferroelectric (FE) .

Image of FIG. 2.
FIG. 2.

Local DOS in a tunnel junction as a function of energy. The and Ti DOS in the middle monolayer are shown by the shaded area. The polarization is assumed to be pointing to the right, as in Fig. 1(b).

Image of FIG. 3.
FIG. 3.

Majority-(left) and minority-spin (right) probability densities for the state at with the lowest decay rate for paraelectric (top) and ferroelectric (bottom) states of a MFTJ at the Fermi energy. The results are obtained using VASP for a barrier layer. Within is displayed on Ti atoms.

Tables

Generic image for table
Table I.

Calculated conductance ( in units of ), spin polarization (SP), change in conductance , and tunneling magnetoresistance (TMR) in MFTJ for is in a paraelectric (PE) and a ferroelectric (FE) state. Quantities are defined as follows: , , and .

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/content/aip/journal/jap/103/7/10.1063/1.2828512
2008-01-16
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Effects of ferroelectricity and magnetism on electron and spin transport in Fe∕BaTiO3∕Fe multiferroic tunnel junctions
http://aip.metastore.ingenta.com/content/aip/journal/jap/103/7/10.1063/1.2828512
10.1063/1.2828512
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