| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1543709 | Physica E: Low-dimensional Systems and Nanostructures | 2016 | 5 Pages |
Abstract
•A model of heterogeneous tunnel junction is developed.•The model takes into account Volta potential and the difference of effective masses.•Calculations was done for Fe/MgO/Fe-like structures.•It is shown the influence of the structure parameters on TMR.
Current in heterogeneous tunnel junctions is studied in the framework of the parabolic conduction-band model. The developed model of the electron tunneling takes explicitly into account the difference of effective masses between ferromagnetic and insulating layers and between conduction subbands. Calculations for Fe/MgO/Fe-like structures have shown the essential impact of effective mass differences in regions (constituents) of the structure on the tunnel magnetoresistance of the junction.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
D.A. Petukhov,